there is a built-in nail file

Machine Washable

AmazonBasics Cotton Hand Towels

or even just static standing

Premium Double-Sided Foot File for Callus Removal - Portable Stainless Steel Pedicure Tool with Ergonomic Silicone Handle Bath Linen there is a built-in nailProduct Size: 26. 5 * 5. 5 * 1. 6cm Quickly to eliminate and smoothes calluses and prevent build up of hard skin, perfect solution to dry, calluses and cracked of high heels feet,thoroughly scrubs and removes dirt, dead skin cells. Surgical grade stainless steel surface with appropriate blade sharpness works instantly to shave off layers of dried calluses and hard skin,can be used on wet as well as dry feet. Ergonomically designed stainless steel