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By incorporating a rigid stem on this belay/rappel device, climbers go from full lock-off to whipping out rope in a single, smooth action. No more binding up as the device tries to free itself. The amount of friction can be easily adjusted to suit your particular need. Climbing with fat ropes, a skinny partner or on low-angle slabs? Belay with the U-Grooves and clip into the bottom hole of the XF Forge for less friction. For the ultimate control, wrap that skinny cord around the rigid stem and rappel, figure-8 style.