Microplane Colossal Foot File is a rasp-style foot file with an extra-large stainless steel filing surface on a pink handle. The fine etched teeth shave down dry, hard skin on the heels; the maker says it works on dry feet, before bathing or in a waterless pedicure. Brand Microplane Type Rasp-style foot file Surface Extra-large, stainless steel Colour Pink handle How to use Use on clean, dry feet. Do not soak first. Draw the file lightly over the callus in one direction, a few strokes at a time, and check the skin as you go. Rinse the file under running water, brush out the skin dust and let it dry. Good to know The teeth are sharp: light pressure only, on thick dry skin only. Never use it on thin, broken or inflamed skin, or on a client with diabetes or poor circulation. Rasp-type foot files are restricted in some places: check your local public health rules for salons before using one on clients. Related products See all foot files and everything from Microplane.