Made with the highest quality Stainless Steel with a Rockwell Hardness of 62. Each blade is hand-finished in USA giving them a unique superior long-lasting edge. Each blade undergoes a rigorous quality control process and are groomer-tested twice to ensure blades meet the highest quality control standards. Cutters have 22 teeth to provide a smooth cut less lines and eliminate unwanted cut patterns resulting in a smooth finish in less time! Wide clipper blades deliver fast and more efficient clipping times with more consistent results. A5 compatible.