If you’re all thumbs then the Sterling 115 Safety Thumlock knife is for you! Packed with features, this versatile knife has automatic blade retraction, diecast all metal construction, suregrip ribbed body to prevent slipping and of course, a Thumlock screw for safe and easy blade changes. Automatic blade retracting system reduces accidents. Thumlock screw for easy blade changes without tools. Suitable for both left and right handers. Die cast all metal construction for maximum strength. Ribbed body with Suregrip design prevents slipping. Ultragrip - designed for gloved hands. Supplied with Safety tip blade.