Sandblaster, 150 Grit Dual Angled Detail Sanding Sponge, Ideal For Drywall Corners, Use For Drywall Finishing & Bare Surfaces Sanding On Wood & Metal, Use On Flat Surfaces As Well As Detail Or Hard To Reach Areas, Cuts 3 Times Faster & Lasts 3 Times Longer Than Standard Conventional Sponges, Clog Resistant.