Constructed of Sandvik 14C28N Steel for strength and corrosion resistance, Kershaw’s Ken Onion Blur folding knife features a 3-3/8-inch smooth or serrated blade. Ideal for extreme or everyday situations, the Blur series offers power and performance. A lightweight anodized aluminum handle offers Trac-Tec inserts which provide a non-slip grip even in wet and slippery conditions. Kershaw’s SpeedSafe assisted opening system helps you to smoothly open the knife with a manual push on the blade’s thumb stud or Index-Open system. SpeedSafe’s torsion bar helps keep the knife closed, preventing it from being opened by accident. In order to open the knife, apply manual pressure to the thumb stud to overcome the resistance of the torsion bar. After the blade is out of the handle, the torsion bar moves along its track and takes over. The blade opens smoothly and locks into position, ready for use.