1It can be used to polish and repair old dead skin on the soles of the feet and make the skin of the feet smooth. 2Exfoliates skin without damaging the normal skin of the feet, fast and effective, easy to install. 3Made of stainless steel material, the polishing head will not rust when exposed to water, has excellent durability and working performance. 4High temperature resistance, corrosion resistance, high hardness, wearresistant and sturdy, easy to clean. 5Universal handle diameter 2.35mm, specially designed for most nail drill machine, convenient and practical.