3M Softback Contour Sanding Sponge, Fine, 4-1/2 Inch

3M Softback Contour Sanding Sponge, Fine, 4-1/2 Inch. Features Extremely flexible softback pad for contoured surfaces and hard-to-reach places Suitable for wet or dry sanding; rinse and reuse; resists clogging For wood, paint, metal, plastic, and drywall; also works on flat surfaces Specs Selected size 4-1/2 x 5-1/2 x 3/16 Inch Grade Fine Manufacturer part # 917