Outdoor Edge Razor-Lite Black Folding Hunter -  3.5" Replaceable Blade, Black Rubberized TPR Handles, Nylon Sheath.
 
Outdoor Edge's innovative replacement razor blade system is the solution for dull knives. You can sharpen the blade or simply push the lock button to remove the it and insert a razor sharp new one. The rubberized handles ensure a secure, non-slip grip.

Each knife comes complete with 6 replacement blades and a removable pocket clip. Replacement packs of 6-blades can be found here.

Specifications:

Blade Length: 3.5" (8.9 cm)
Blade Steel: Japanese 420J2, 57HRC
Overall Length: 8" (20.3 cm)
Handle Material: Rubberized Black Rubberized TPR
Sheath Material: Nylon, Black
Weight: 3.6 oz.