Designed for half ropes, twin ropes, or thin singles, the Mammut Smart Alpine Belay Device uses its aptly engineered shape to automatically catch falls while increasing your belaying and rappelling options in the alpine. This intuitive adaptation of the award-winning Smart accepts ropes between 7.5mm and 9.5mm for alpine, mixed, and ice climbing.An updated design uses the same non-mechanical construction of the original Smart device to pinch the rope during a fall and make for easy catching and holdingThe extended lever allows for easier catching and releasing when lowering your climberThe auto-lock option allows a lead climber to belay one or two seconding climbers directly below the anchor
Bottom Line: Simplify your many belays and rappels on big peaks.