Functions & Features: - Professional- / industrial-grade scissors - Swiss made - Specially designed for long wear while cutting difficult materials - Patentened design reduces manual effort by 50 % to 70 % compared to ordinary scissors - Lower blade remains horizontal for greater control and precision cutting - Very sharp titanium nitride-coated blades for cutting a variety of materials - from paper to silk to leather to Kevlar and more - Replaceable and interchangeable blades -- 501 - standard replacement blades set -- 601 - micro-serrated replacement blades set