Item Type: Neodymium Magnet Material: Neodymium Single Product Size: Approx. 18 x 3mm / 0.71 x 0.11in Package List 40 x Round Magnets Circular magnets are very fragile and forbid collisions with other metal objects (including another magnet), so be careful when trying to separate them 1Lasting Luster: Disc magnet shape, machined silver steel finish. Durable and long lasting luster, refrigerator magnet, whiteboard magnet and dry erase board magnet. 2Easy to Carry: This magnet is very portable, you can always carry it around when you need it, and when you don't need it, you can easily store it without taking up too much space. 3Glossy and Slick Exterior: This heavy duty magnet is more magnetic than ferrite magnets, and the three layer plating makes the magnet look slick and shiny and more durable. 4Help Organization: This magnet can help you organize your tools such as cosmetics, jewelry, ties, kitchen, office, warehouse, garage, workshop, crafts, photos, greeting card displays, even create DIY magnet projects and more. 5Wide Use: Multifunctional mini magnets can be used for refrigerator magnets, whiteboard magnets, advertising magnets, doors, cabinet ceilings and hanging, holding and dragging purposes.