?Wide Application?Crystal Hair Eraser is safe to use on knuckles, arms, legs, chest, and back. However, we suggest not to overuse or rub too hard. If you have sensitive skin, try it on your arms/legs first before you use it on other delicate parts. ?Easy to Use?Magic crystal hair remover is compact and does not require charging. You can carry it anywhere. Simply apply it to your skin in a circular motion to you help painless hair removal, exfoliate dead skin and improve complexion. ?Eco-Friendly and Reusable? Using Nano-Crystalline technology, Crystal Hair Eraser allows the hairs to clump and break from the surface when rubbed gently on the skin. No refills or recharges are required and it is reusable. ?Painless & Easy to Use?Crystal Hair Eraser uses nanocrystal technology, gently wipe painless Hair removal. Say goodbye to razor cuts, waxing pains and expensive lasers. Simply rub it to your skin in a circular motion for a hair-free body! This process also helps exfoliate, revealing baby smooth skin after use. ?Magic Crystal Hair Remover?Using micro technology to gently remove hair on the surface it comes in contact with, simply by just gliding the magic hair remover surface onto the skin.