In stock now: Mammut Assist Belay Resistor. ✅ Up to 35kg/5.5 stone weight difference (45kg/7 stone Boost Mode) ✅ Single ropes 8.7–11.0mm ✅ Activates only on a fall/lower ✅ Soft catches, dynamic belaying ✅ Engages from first bolt ✅ 220g Only five in stock → https://inglesport.com/product/mammut-assist-belay-resistor #outdoors #climbing #climbinggear #uk #britain #england