5pcs D4x20mm N42 Neodymium Magnets Rare Earth Strong Magnetic Toys

5pcs D4x20mm N42 Neodymium Magnets Rare Earth Strong MagnetFeature:Super Strong  Rare Earth Magnet - once they  get stuck with each other, they are hard to  break apart;Easy fragile,so plesae use it carefully.Can also be used to extend protected lithium  batteries with recessed contact points.Electrically conductive (making them  suitable to extend recessed batteries).Perfect for sticking notes on fridge doors.Ideal for DIY projects,whiteboard fixing,adsorption of various steel parts,fixing tissue box on the roof,etcCause the big super magnetic,don't let the kid touch it.WARNING: We would not recommend this magnet be used by children under 8 without supervision!  Description:Color: New As PictureQuantity: 5 PCSSize: 4mm Diameter x 20mm ThickGrade: N35 For Craft Models Job Lot Package include:5x4*20mm Magnet 5pcs D4x20mm N42 Neodymium Magnets Rare Earth Strong MagnetFeature: Super Strong  Rare Earth Magnet - once they  get stuck with each other, they are hard to  break apart; Easy fragi