office magnetsare made fromNeodymium Magnetsall. Compare with common ferrite office magnets . It’s super strong indeed .
Most of office magnets are covered by ABS plastic . It will provide follow advantages :
Scratch protection: Delicate surfaces, such as whiteboards or magnetic glass boards, are well protected Waterproof: These magnets are rustproof and can be used outdoors as long as the plastic coating stays intact Friction: The plastic coat substantially increases the magnetic adhesive force in shear direction
TheseMagnetsWork On: Glass boards | Whiteboards | Refrigerators in office or home Attaches well to magnetic whiteboards, refrigerators & steel