Brand new and high quality.Super strong Rare-Earth magnets - once they get stuck with each other， they are hard to break apart.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，etcAges7+ ages， both for kids and adults.FeaturesShape:Hole Disc Magnets Size：approx. 10(Diameter) x3(thickness) mm--Hole:3mmMaterial: Nd-Fe-B MagnetSurface:Nickel platingOperating temperature: ≤80℃Magnetizing direction: the plane of N S poles Weight:2g/pcPackage Include 10 x Magnets