Feature: 1. 50Pcs in Total: This round neodymium magnet kit contains 50pcs strong magnets and lightweight for you to carry them to anyplace and simple to store. 2. 3 Layer Plating and Slick Surface: Strong round neodymium magnet is with three layers of plating make the magnets appearance slick and bright, strong and corrosion resistance. 3. Heavy Duty and Strong Magnetism: This round neodymium magnet is heavy duty type and has strong magnetism, suitable for refrigerators, whiteboards, doors, cabinets, etc. 4. Decorative: Strong round neodymium magnet set can be applied as card display and production decoration, suitable for DIY and so on. 5. Wide Application: Strong round neodymium magnet kit is great for office, school, home use, such as kitchen and warehouse. Specification: Item Type: Round Neodymium Magnet With Hole Material: Neodymium Individual Product Size: Approx. 10 x 3mm / 0.39 x 0.12in Hole: M4(4mm). Package List: 50 x Magnet Note: Manual measurement may have error. Please make sure you don't mind before ordering.