USHBA BASIC ASCENDER Ushba Lightweight compact construction has made the Ushba Basic Ascender a trusted companion for years now. The toothless cam is strong and will not slip on icy or muddy ropes. Essentially a supplemental ascender designed for alpine ascents and hauling systems, the Basic Ascender is also ideal for crevasse rescue or as a top rope self-belay device. Smooth, friction-free cam operation. NOT TO BE USED AS A LEAD BELAY DEVICE. * Weight: 124grams * Rope Diameters: 8-13mm * Dimensions: 3" x 2" x 0.75" * Rope Holding Strength: +4kN/900 lbs * Case Strength: 4600 lbs * Case/Axle: Titanium * Cam/Block: Nickel-plated Aluminum