![Amazon.com: Ferrite Ring Magnet - OD1.18"(30mm) x ID0.7"(18mm) x 0.2"(5mm),Grade 8 Round Disc Donut Ceramic Magnets with Holes for Refrigerator Fridge,Industry Science,Crafts and Hobbies - 28 PCS : Industrial & Scientific Amazon.com: Ferrite Ring Magnet - OD1.18"(30mm) x ID0.7"(18mm) x 0.2"(5mm),Grade 8 Round Disc Donut Ceramic Magnets with Holes for Refrigerator Fridge,Industry Science,Crafts and Hobbies - 28 PCS : Industrial & Scientific](https://m.media-amazon.com/images/I/61x5cdq6+vL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Ferrite Ring Magnet - OD1.18"(30mm) x ID0.7"(18mm) x 0.2"(5mm),Grade 8 Round Disc Donut Ceramic Magnets with Holes for Refrigerator Fridge,Industry Science,Crafts and Hobbies - 28 PCS : Industrial & Scientific
![Amazon.com: Burnur Grade C8 Ceramic Ring Magnet, OD 60 mm x ID 24mm x 10 mm 2.4" Large Ferrite Magnets. 2 Pack : Industrial & Scientific Amazon.com: Burnur Grade C8 Ceramic Ring Magnet, OD 60 mm x ID 24mm x 10 mm 2.4" Large Ferrite Magnets. 2 Pack : Industrial & Scientific](https://m.media-amazon.com/images/I/41ZCQMu1OgL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Burnur Grade C8 Ceramic Ring Magnet, OD 60 mm x ID 24mm x 10 mm 2.4" Large Ferrite Magnets. 2 Pack : Industrial & Scientific
![CMS Magnetics Super Powerful N52 Neodymium Ring Magnet OD 2 x ID 1 x 1/4" w/ 46 LB Holding Power - Rare Earth Ring Magnet 1 Piece: Amazon.com: Industrial & Scientific CMS Magnetics Super Powerful N52 Neodymium Ring Magnet OD 2 x ID 1 x 1/4" w/ 46 LB Holding Power - Rare Earth Ring Magnet 1 Piece: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51X5rVx2agL._AC_UF1000,1000_QL80_.jpg)
CMS Magnetics Super Powerful N52 Neodymium Ring Magnet OD 2 x ID 1 x 1/4" w/ 46 LB Holding Power - Rare Earth Ring Magnet 1 Piece: Amazon.com: Industrial & Scientific
![CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71G8Q+U1tJL.jpg)
CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific
![Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51UW2D1EzML._AC_UF894,1000_QL80_.jpg)
Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific
![Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts : Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts :](https://m.media-amazon.com/images/I/41cGqH4eygL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts :
![Amazon.com: 9 Pcs Fidget Magnetic Rings, Colorful Finger Magnet Rings, Decompression Finger Magnetic Toys. : Toys & Games Amazon.com: 9 Pcs Fidget Magnetic Rings, Colorful Finger Magnet Rings, Decompression Finger Magnetic Toys. : Toys & Games](https://m.media-amazon.com/images/I/71A1ht68aRL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 9 Pcs Fidget Magnetic Rings, Colorful Finger Magnet Rings, Decompression Finger Magnetic Toys. : Toys & Games
![Amazon.com: Magnetic Rings Fidget Toy Set, Idea ADHD Fidget Toys, Adult Fidget Magnets Spinner Rings for Anxiety Relief Therapy, Fidget Pack Great Gift for Adults Teens Kids (3PCS) : Toys & Games Amazon.com: Magnetic Rings Fidget Toy Set, Idea ADHD Fidget Toys, Adult Fidget Magnets Spinner Rings for Anxiety Relief Therapy, Fidget Pack Great Gift for Adults Teens Kids (3PCS) : Toys & Games](https://m.media-amazon.com/images/I/71-QCNq9JgL.jpg)
Amazon.com: Magnetic Rings Fidget Toy Set, Idea ADHD Fidget Toys, Adult Fidget Magnets Spinner Rings for Anxiety Relief Therapy, Fidget Pack Great Gift for Adults Teens Kids (3PCS) : Toys & Games
![Amazon.com: Ferrite Ring Large Magnet,4.72In Dia Big Round Ceramic Disc Heavy Duty Magnets with Hole for DIY Crafts Science Projects Industrial,Large Ceramic Donut Magnet : Industrial & Scientific Amazon.com: Ferrite Ring Large Magnet,4.72In Dia Big Round Ceramic Disc Heavy Duty Magnets with Hole for DIY Crafts Science Projects Industrial,Large Ceramic Donut Magnet : Industrial & Scientific](https://m.media-amazon.com/images/I/61yJ7WZnLvL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Ferrite Ring Large Magnet,4.72In Dia Big Round Ceramic Disc Heavy Duty Magnets with Hole for DIY Crafts Science Projects Industrial,Large Ceramic Donut Magnet : Industrial & Scientific
![Applied Magnets® 1 Piece 1.26" OD x 1/2" ID x 1/4" Grade N52 Neodymium Ring Magnet: Amazon.com: Industrial & Scientific Applied Magnets® 1 Piece 1.26" OD x 1/2" ID x 1/4" Grade N52 Neodymium Ring Magnet: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71XfXOsidJL._AC_UF1000,1000_QL80_.jpg)
Applied Magnets® 1 Piece 1.26" OD x 1/2" ID x 1/4" Grade N52 Neodymium Ring Magnet: Amazon.com: Industrial & Scientific
![Amazon.com: TRUVUE (2 Pack) 3.5" (8.9 cm) Ferrite Ring Ceramic Magnet | C5 / Y30 Grade | 1" (2.5 cm) Center Hole | Ideal for Welding & Collecting Metal Shavings : Industrial & Scientific Amazon.com: TRUVUE (2 Pack) 3.5" (8.9 cm) Ferrite Ring Ceramic Magnet | C5 / Y30 Grade | 1" (2.5 cm) Center Hole | Ideal for Welding & Collecting Metal Shavings : Industrial & Scientific](https://m.media-amazon.com/images/I/51Yy62X9FWL._AC_UF894,1000_QL80_.jpg)
Amazon.com: TRUVUE (2 Pack) 3.5" (8.9 cm) Ferrite Ring Ceramic Magnet | C5 / Y30 Grade | 1" (2.5 cm) Center Hole | Ideal for Welding & Collecting Metal Shavings : Industrial & Scientific
![Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts : Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts :](https://m.media-amazon.com/images/I/61x09nLL54L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts :
![Y30BH Ferrite Ring Magnet for Arts, Crafts, Model Making, DIY and Hobbies - 100mm O.D. x 50mm I.D. x 12mm Thick - 9kg Pull: Amazon.com: Industrial & Scientific Y30BH Ferrite Ring Magnet for Arts, Crafts, Model Making, DIY and Hobbies - 100mm O.D. x 50mm I.D. x 12mm Thick - 9kg Pull: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51VU20zVBRL._AC_UF894,1000_QL80_.jpg)
Y30BH Ferrite Ring Magnet for Arts, Crafts, Model Making, DIY and Hobbies - 100mm O.D. x 50mm I.D. x 12mm Thick - 9kg Pull: Amazon.com: Industrial & Scientific
![Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51vSWCU55HL.jpg)
Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific
![CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71KE8fWWZ9L._AC_UF1000,1000_QL80_.jpg)
CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific
![Amazon.com: Ferrite Ring Magnets with Holes - 1.2 Inch (31mm) Round Disc Donut Magnets - Circle Hole Magnets - Perfect Ceramic Circular Magnets for Crafts and DIY : Industrial & Scientific Amazon.com: Ferrite Ring Magnets with Holes - 1.2 Inch (31mm) Round Disc Donut Magnets - Circle Hole Magnets - Perfect Ceramic Circular Magnets for Crafts and DIY : Industrial & Scientific](https://m.media-amazon.com/images/I/81Wa0kHC4bL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Ferrite Ring Magnets with Holes - 1.2 Inch (31mm) Round Disc Donut Magnets - Circle Hole Magnets - Perfect Ceramic Circular Magnets for Crafts and DIY : Industrial & Scientific
![Amazon.com: Burnur Grade 8 Ceramic Ring Magnets, OD 45 mm x ID 22mm x 8 mm (Pack of 6) : Industrial & Scientific Amazon.com: Burnur Grade 8 Ceramic Ring Magnets, OD 45 mm x ID 22mm x 8 mm (Pack of 6) : Industrial & Scientific](https://m.media-amazon.com/images/I/71wQck-MbyL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Burnur Grade 8 Ceramic Ring Magnets, OD 45 mm x ID 22mm x 8 mm (Pack of 6) : Industrial & Scientific
![Neodymium Ring N45, OD 3” X ID 0.75” X 1” NdFeB Rare Earth Magnets 1-Count: Industrial Rare Earth Magnets: Amazon.com: Industrial & Scientific Neodymium Ring N45, OD 3” X ID 0.75” X 1” NdFeB Rare Earth Magnets 1-Count: Industrial Rare Earth Magnets: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71AfNxwRp1L._AC_UF1000,1000_QL80_.jpg)
Neodymium Ring N45, OD 3” X ID 0.75” X 1” NdFeB Rare Earth Magnets 1-Count: Industrial Rare Earth Magnets: Amazon.com: Industrial & Scientific
![MIN CI 60Pcs Strong Neodymium Disc Magnets with Hole, Small Permanent Round Ring Rare Earth Magnets Heavy Duty, for Cabinets Lockers Cruise Crafts DIY Industrial Screws (8 x 3mm Hole 3mm): Amazon.com: MIN CI 60Pcs Strong Neodymium Disc Magnets with Hole, Small Permanent Round Ring Rare Earth Magnets Heavy Duty, for Cabinets Lockers Cruise Crafts DIY Industrial Screws (8 x 3mm Hole 3mm): Amazon.com:](https://m.media-amazon.com/images/I/71DWwhzgWlL._AC_UF894,1000_QL80_.jpg)
MIN CI 60Pcs Strong Neodymium Disc Magnets with Hole, Small Permanent Round Ring Rare Earth Magnets Heavy Duty, for Cabinets Lockers Cruise Crafts DIY Industrial Screws (8 x 3mm Hole 3mm): Amazon.com:
![MagnetRX® Magnetic Ring - Elegant Stainless Steel Ring - Magnet Rings for Men (Black | Size: 6)|Amazon.com MagnetRX® Magnetic Ring - Elegant Stainless Steel Ring - Magnet Rings for Men (Black | Size: 6)|Amazon.com](https://m.media-amazon.com/images/I/61hUbrKNiUL._AC_UY1000_.jpg)
MagnetRX® Magnetic Ring - Elegant Stainless Steel Ring - Magnet Rings for Men (Black | Size: 6)|Amazon.com
![Amazon.com: Super Strong Neodymium Magnet Ring 1.5" OD x 3/4" ID x 3/4" N42 : Industrial & Scientific Amazon.com: Super Strong Neodymium Magnet Ring 1.5" OD x 3/4" ID x 3/4" N42 : Industrial & Scientific](https://m.media-amazon.com/images/I/71AjjhBtSPL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Super Strong Neodymium Magnet Ring 1.5" OD x 3/4" ID x 3/4" N42 : Industrial & Scientific
![Amazon.com: Ferrite Ring Magnet,2.75In Dia, Heavy Duty Round Ceramic Disc Magnets with Hole for DIY Crafts Science Projects Industrial, Pack of 2 : Industrial & Scientific Amazon.com: Ferrite Ring Magnet,2.75In Dia, Heavy Duty Round Ceramic Disc Magnets with Hole for DIY Crafts Science Projects Industrial, Pack of 2 : Industrial & Scientific](https://m.media-amazon.com/images/I/61sUtfPohdL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Ferrite Ring Magnet,2.75In Dia, Heavy Duty Round Ceramic Disc Magnets with Hole for DIY Crafts Science Projects Industrial, Pack of 2 : Industrial & Scientific
![Amazon.com: Ferrite Ring Magnets with Holes - 1.26 Inch (32mm) Round Disc Donut Magnets for Refrigerator Fridge, Science Projects, Crafts, Around The Office (Pack of 40) : Industrial & Scientific Amazon.com: Ferrite Ring Magnets with Holes - 1.26 Inch (32mm) Round Disc Donut Magnets for Refrigerator Fridge, Science Projects, Crafts, Around The Office (Pack of 40) : Industrial & Scientific](https://m.media-amazon.com/images/I/61SGEcQo1JL._AC_UF894,1000_QL80_.jpg)