Stay sharp for less!  If you've been thinking about moving to a replacable blade system, here's your chance.  The bases were purchased in bulk use but are all fully functional.  The package includes the base knife (with a used blade on it) as well as a 6-pack of brand new blades.  When one blade goes dull, you simply push the detach button and replace it.  3.5" blade length is ideal for a wide variety of situations making this a great fit for most backcountry adventures.