6 PACK OLFA 9mm Stainless Steel Auto-Lock Professional Graphics Knife SVR-2 Stainless steel, ultra-slim snap-off blade professional cutter (rust resistant) OLFA 9mm knives. Auto Lock. 13 cutting edges per blade Good For: cutting wallpaper, window films, caulking, vinyl graphics, cuts vinyl, car wraps Pocket-Clip / Blade snapper