Specifications: ? 4-1/2" Aluminum Handle with Knurled Grip for a Safe, Secure Hold? 4-Jaw Locking Mechanism Secures Blade Safely In Place? Includes Two Surgically Sharp Spring Steel Blades ? Complete with Safety Cap for Knife and Blade Storage Case? Excellent for Model Making, Mat Cutting, Etching, Carving, Stripping, Trimming, Etc.