The Outdoor Edge Cutlery RR306 is a set of 6 replacement razor-blades made from high-quality Japanese 420J2 stainless steel. Each blade undergoes a precise heat treatment process and is then hand finished to obtain a cutting edge that is as sharp as a surgical instrument.These specialized blades are designed to perfectly fit all 3.0\" models in Outdoor Edges\' RazorSafe Series. They are compatible with both the 3.0\" RazorLite EDC and the Onyx Lite models.