Bacteria Shield Glass Foot Buffer - BenefitsSmooth side buffs and softens as finishing touchCan be sterilized by placing in sunlight or UV light for 2 hoursHigh-quality glass lasts for yearsSuitable for sensitive nails and skin2-in-1: callus remover and bufferRough side targets hard, thick skinDoes not corrode, rust, rot & become unhygienic like other filesCoated with Anti-Bacterial finish - Bacteria Shield Glass Foot Buffer