Outdoor Edge Drop Point Replacement Blades Stainless 2.2 in. 6 pk. Pack of six 2.2-inch drop-point replacement blades;Made from Japanese 420J2 stainless steel for durability;Rockwell hardness of 55-56 for excellent edge retention;Part of the RazorSafe System for easy and secure blade replacement;Compatible with Outdoor Edge knives for versatile use.