It bites... but in a good way. The JAWS is the sport and trad climbers belay device that locks onto the rope like a pit bull in heat. Dual V-shaped grooves provide the braking action for any size rope - from skinny twins to honkin' big wall ropes. Quick and secure lock offs are assured as your rope is drawn deeper into the V grooves - creating more friction. Rig in the same orientaion for steep rappels or rappels with a pack or rotate 180º so the free end of rope runs over the flat side for equally smooth rappels on low angle slab routes.