Features Strong Magnetic: Heavy-duty neodymium magnets are more magnetic than ferrite magnets, triple-layer plating makes the magnets look smooth and bright, more durable Durable Shine: Disc magnet shape with machined silver steel finish for durability and long-lasting shine Multifunctional: Neodymium magnets can be used for refrigerator magnets, whiteboard magnets, advertising magnets, doors, cabinet ceilings as well as hanging, holding, dragging, etc. Applicable Scene: office magnets can also organize your tools, such as cosmetics, jewelry, ties, kitchen, office, warehouse, garage, workshop Wide Application: Rare earth magnets can be used for crafts, photos, greeting card displays, even create DIY magnet projects, etc. Specification: Item Type: Neodymium Disc Magnets Material: Neodymium Single Size: Approx. 15 x 3mm / 0.59 x 0.12in Hole: M4(approx. 4mm / 0.16in) Package List: 20 x Neodymium Disc Magnets Note: Please allow tiny size error due to manual measurement. Thanks for your understanding. Package List 20 x Neodymium Disc Magnets