The Chikamasa B-500H are straight, carbon steel blades with no coating. These specialized garden scissors are ideal for long hours of cutting and pruning in the field or chair. The outside edges of these carbon steel blades are grounded round, a first for Chikamasa. Rounded edges on scissors protect the grain of the flower, grape or other agricultural commodity you're pruning from bruising or other damage as you work. These trimmers are high-quality Japanese artistry at its finest. Plus, since the B-500 series was field-tested on dried flowers and by U.S. federal occupational safety hazard inspectors, you can be sure they were thoughtfully designed with your needs in mind.