Sheffield 12113 One-Hand Opening Lock-Back Utility Knife, (Colors May Vary) N/A Imported Patented quick change blade mechanism 3-1/2" Lightweight aluminum texture grip handle 4 Ounces, 6 Inches overall Includes 1 blade Features pocket clip Features a sturdy aluminum handle, fold out blade housing The blade is changed easily using patented snap lock and sliding mechanism Uses standard utility blades This innovative and useful tool combines the best features of a lock back knife with a utility knife. Features a sturdy aluminum handle, fold out blade housing. The blade is changed easily using patented snap lock and sliding mechanism. Uses standard utility blade