Ferrite Ring Magnet Ceramic Large Round Strong Magnets,OD2.35 x ID1.25" x 0.39",Heavy Duty Circle Magnets for Industry Science, School and Hobbies,2PCS

Grtard 45 Pack Ceramic Magnets with Adhesive Backing, Small Round Disc for Crafts, DIY, Science, Hobbies, Projects - Flat Circle Ferrite Industrial Magnets, 0.71inch x 0.12inch

TRYMAG Small Ceramic Round Disc Magnets with Adhesive Backing, 15x3mm Tiny Flat Circle Ferrite Industrial Magnets for Crafts, Science, Hobbies, Project - 0.6Inch, 130Pcs

AZ Industries Large 3.025" Diameter Ceramic Hard Ferrite Disk Disc Magnet Strong 2-Pack, Grade 8

AplysiaTech C8 Rectangular Magnets, 1-7/8" L x 7/8" W x 3/8" H - 36 Pack, Large Block Ceramic Magnet, Industrial Ferrite Magnets,Strong Magnet for Crafts,DIY,Science,Fridge,Tool Room Whiteboard

4PCS Large Ferrite Ring Magnet - Grade 10 Big Magnets Heavy Duty, OD60mm x ID32mm x 10mm, Ceramic Circular Magnets for Industry Science, School,Crafts and Hobbies

kewanqi Ferrite Magnet Ring OD2.4 x ID1.3" x 0.4", Grade C8 Ceramic Magnets for Industry Science Experiment,Crafts and Hobbies-4pcs

Ferrite Ring Magnet,2.75In Dia, Heavy Duty Round Ceramic Disc Magnets with Hole for DIY Crafts Science Projects Industrial, Pack of 2

Creative Hobbies Ceramic Industrial Magnets - 1 Inch (25mm) Round Disc - Ferrite Magnets Bulk for Crafts, Science, Refrigerator or Whiteboard - 25 Piece Pack

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