Sterility: disposable nail file refills are used individually for each client. Strong adhesive base is resistant to moisture. Abrasive paper does not shed its grain or tear in work. Manicure file refill paper is hard-fixed on the nail file base for a maximum comfort in work. Replaceable nail file abrasives are available with 100 grit and 180 grit, and can be bought separately. While in work, a nail file does not make the nail plate loose