The Tactical Nuk is the strongest, most useful non-metallic blade around. This is definitely not a toy. The textured handle ensures a no-slip grip. And the edges are super sharp. The two-blade system fits together with completely flat inner sides for a low profile, but comes apart when you need them. They work great as letter openers, box cutter or for discrete protection as everyday carry. No not attempt to bring these on a plane or into any government building. Overall length is 6.75in. Blade length is 3.25in.