Our CRL Foam-Grip Push-Button Cold Knife has a convenient one step push-button blade release system. This allows the installer to change blades in seconds. No clips, snaps, screws or securing devices to add to the down time of auto glass replacement. The textured foam grip adds handling stability, gripping action, and user comfort. The pull cable has been reinforced with 50% more material to withstand maximum pulling torque. The pull cable has also been coated to prevent damage to the "A" pillars, hood and other painted areas. Each CRL One Step Push Button Cold Knife comes with one RKB10 stainless steel cutting blade.