Finally there's no need for time consuming and cumbersome foot soaking. The Checi nickel foot Files are specially designed to work on dry skin, enabling you to have beautiful feet at all times. They are light weight and can be taken anywhere. It's state-of-the-art barasive surface safely and gently smoothes away hard, rough skin and calluses for an unsurpassable smooth finish. It will not take away healthy skin, causing calluses to grow back slower and softer over time. An easy to grip andle and thin curved head lets you file even the hard to reach areas. They are fully sanitizable in plastic-safe sanitizing solution. This display includes 3 medium and 3 coarse foot/callus files. This display is a great presentation and has a great space allocation. The medium grit is great for maintenance. The coarse grit redusces thick, hard calluses.