RETAIL PACKAGING * Blue 7 1/4 * Razor sharp super-hardened surgical stainless steel blades with one serrated edge to cut through the toughest materials * Blades tempered to a Rockwell hardness of C56 for unsurpassed durability * Contoured polypropylene handles with large ring provide maximum control and comfort * Extra large rivet with a rated strength of 88kg assures rugged durability * Fully auto-clavable to 143¯C (290¯F) * Inspected and packaged in the U.S.A. *