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. Set B includes 1 pc of 1000 grit, 2 pcs of 800 grit, and 2 pcs of 600 grit. Convenient set for surface finishing. Approximate size of each piece is 105mm x 20mm x 2mm.