13-segment 9mm snap-off stainless steel blade for working in wet environments such as wall paper installation. Made of stainless steel with a double-honed blade for unparalleled sharpness and superior edge retention. Exact 59° edge angle optimizes cutting power and minimizes blade breakage. The blades are designed to cut through wallpaper window film tint application paint caulking packaging tape shrink wrap cardboard and other materials. 50-pack of blades.