Designed for all users, the GRIGRI is a belay device with assisted blocking for belaying both indoors and at the crag.The cam-assisted blocking function of the Petzl GRIGRI makes belaying indoors or at the crag easier when a climber is working a route, or when catching a fall. The camming mechanism has been designed to offer exceptional descent control within a compact and lightweight design. This belay device can be used with all single ropes from 8.5mm to 11mm.FeaturesCompact and lightweight belay device designed for both lead and top-rope climbersCam-assisted blocking function for efficiency when a climbing is working a route, or when catching a fallFeeding slack and catching falls using standard belay techniques (always keeping a hand on the brake side of the rope) Cam-assisted blocking offers leeway for the break-side hand position, regardless of the angle between the climber side and brake side of the ropesRope installation diagram engraved on both the inside and outside of the deviceErgonomic handle allows you to easily unblock the rope and lower someoneEasily controlled and progressive rope feed provides smooth and comfortable descentLightweight, compact and balanced designCompatible with all 8.5mm to 11mm dynamic single ropes and optimised for those 8.9mm to 10.5mmMaterials: aluminium side plates, stainless steel cam and friction plate, reinforced nylon handleCertification: CE EN 15151-1, UIAAWeight: 175g