Description Set of 6 3" Japanese 420J2 Stainless Steel Replacement Blades. Each blade is precision heat treated and hand finished with a surgically sharp cutting edge. These blades fit the RazorSafe Edge RazorSafe 3.0-inch RazorLite EDC and OnyxLite series only. They are not compatible with the 3.5-inch Razor Lite EDC, RazorBlaze, RazorLite EDC, RazorPro, or Onyx EDC.