The Hultafors SRP 25W Wheel Lock Snap-Off Knife has an ergonomic, rubberised grip. Its symmetric design allows for both right and left-handed usage. Tapered for better visibility, access and control. Made of durable plastic with a steel core for added stability. It also has a 1mm (0.039in) thick, metal blade rail for additional stability. Additionally, It comes with 4 blades, 1 in the blade rail and the extra 3 in the dispenser that the knife holds.