True TRU-FMK-1005 TRU-FMK-1005 Swift Edge 4" Fast Flip TPR Handle Knife - Hunters need reliability and a knife that is built around utility without fear of it taking a few knocks out in the field. That’s why TRUE developed the Swift Edge TPR (Thermoplastic Rubber) Replaceable Blade Knife. While still being compact and lightweight, the folding 4” blade knife provides extra cutting length for field dressing tasks and the TPR handle offers great handling and grip for large or gloved hands. TPR is durable, abrasion-resistant, and has good chemical resistance to oils and grease. The vibrant, blaze orange color makes it stand out against natural earth-tones so if you drop the knife on the trail or at a campsite it will be easy to find.