The Onyx 3.5″ Replaceable Blade Knife by Outdoor Edge, a versatile and indispensable tool for every outdoor enthusiast. This compact and rugged knife is designed to handle a wide range of tasks, from field dressing game to everyday cutting needs. With its innovative replaceable blade system, the Onyx ensures you’re always working with a razor-sharp edge. The Onyx comes with three blades in total and is compatible with 350 blades.