· 【6 Rich Sizes】There are a total of 198 neodymium magnet kits with a huge number of pieces! Satisfy your various uses.（60x10x3mm 3Pcs, 40x10x5mm 5Pcs, 30x10x3mm 12Pcs, 20x5x2mm 50Pcs, 10x5x2mm 60Pcs, 6x3x2mm 68Pcs）· 【Long Term Use】Cheers to bar magnets having a shiny smooth finish! That's because of the highest quality technology available: plated with a Ni-Co-Ni triple coating that prevents the small magnets from corroding and rusting and gives the neodymium magnet a beautiful smooth silver finish that allows you to use the strong magnets indefinitely without worrying about needing to replace them.· 【 Everyday Essentials 】 Strong rare earth magnets can be used as whiteboard magnets, refrigerator magnets,office magnets，small magnets for crafts and locker magnets. Small magnets can also be used for DIY crafts, 3D printing, miniature model, and sealed food bags. Neodymium magnets strong have a wide range of applications, and you can unleash your imagination.· 【Smooth Surface】 Each rare earth magnets feels very smooth to the touch, so it won't leave scratches on your refrigerator and whiteboard, and is easy to disassemble. It is worth noting that this is not a toy, please keep these magnets away from children.· 【Professional After Sales】If you encounter a problem during use, we will provide you with a solution until you are satisfied.We are a magnet supplier with professional strength. You can certainly find magnets you want in my shop!