crystal hair eraser is made of high quality glass and ABS material with smooth surface and reliable ,you can use it in all your body it is painless physical hair removal apply to all body like arms ,armpits, chest ,legs ,back and it can be used to remove dead skin cells small size and easy to carry 【ECO-FRIENDLY AND REUSABLE】The Crystal Hair Eraser uses Nano Crystal Technology, which allows hair to clump and break from the surface when gently rubbed against the skin. No need to refill or recharge, reusable【Light and Portable】Mini size is lightweight, you can take it with you anytime, anywhere. The eraser is suitable for men and women, and it is also a great gift for relatives, friends, colleagues and classmates on special occasions such as birthday, Father's Day, Thanksgiving, Valentine's Day, Christmas and so on Painless and easy to use】