A sponge type file that uses highly durable cloth. Unlike a paper file a cloth file works great for curved surfaces as well as flat surfaces. Printed on the cloth of each file is the grit as well as a color that corresponds with the grit. This special set contains 3 different thicknesses (2mm 3mm 5mm) and 11 different grits (120 240 400 800 1000 2000 4000 6000 8000 10000) for a total of 33pcs. Each piece is approximately 35mm x 20mm. Each piece is already cut for the perfect size for use and includes 1 of every thickness and grit. This is a limited time product.