3M 908 Sanding Sponge, 3-3/4 in L, 2-5/8 in W, Fine, Medium, Aluminum Oxide Abrasive

3M small area sanding sponge is for either dry or wet sanding. Ideal for sanding wood, paint, metal, plastic and drywall. Two sanding grades on one sponge in a combination of extra fine/fine, fine/medium or medium/coarse. Rinse and reuse.