Ranging in grits from 1500 to 12,000 - polish your finished or raw woodto a rich hard rubbed shine. extra sharp, extra fine abrasives lies in the bed of a resilient latex over a backing of flexible cloth that molds to the surface you are sanding. Stop at 3600 grit for a satin finish or go all the way to 12,000 for super high gloss. Kit includes 18 3" x 6" abrasive sheets (2 of each grit), rubber block and instructions.