• Material: Rare earths NdFeB • Magnet size: 2 mm diameter x 1 mm thickness, with a tolerance of +/- 0.1 mm • Vertical pull force: 0.06 kg • Slip resistance: 0.026 kg • Magnetic direction: The north and south poles of each magnet are located on flat and opposite surfaces • Surface treatment: Nickel-plated • Color: Silver • Shape: Round • Package dimensions: 2.5 x 2.5 cm • Package content: 100 round magnets • Multiple uses: Perfect for attaching to most stainless steel refrigerators, washing machines, office whiteboards, school lockers, etc. They can also be used in medical applications such as MRI, magnetic mechanics, electromagnetic relays, electronic controls, computers, digital cameras, mobile phones, linear motors, moving coil motors, wind turbines, servomotors, and more. • Anti-scratch technology: These modern magnets have a round and smooth shape that does not damage surfaces. Don't worry about scratching the refrigerator, tools, or your new table. • Warning: Keep out of reach of children. Do not swallow or put in mouth or nose. Keep away from pacemakers. Avoid strong impacts. Discard if broken.