DURABLE Strong Stainless Steel Rust Resistant Blades: Forging press manufacturing process enables high-density steel that makes 5 times harder than normal stainless steel and are smoother cutting. ULTRA SHARP and ALL-PURPOSE: Easy for cutting multi layors of fabrics. Ideal for sewing, tailoring, quilting, dressmaking, cutting patterns, alterations, hand craft, home and office use etc. BENT and Mirror finish design