The Newdoar Foot Ascender Riser Is A Climbing Device Designed For Mountaineering [Safty Guarantee]: CE 1282, EN 363:2008 ensures its security,foot ascender you can trust.Max load:330 lb(150 kg),Rope Diameter:8~13mm,Webbing Width: Approx. 2 cm/ 0.79",Weight: 4.06oz(115g)size:2.51''(6.4cm)2.75''(7cm) [High Quality]: NewDoar foot ascender is made of aluminium magnesium alloy,providing high strength,lightwighted, easy carring and corrosion resistance. [Efficiency Labor-saving]: Wide belt and innovative strapes are designed to make rope ascents more efficent and less tiring,when used in conjunction with an ascender handler or chest ascender makes it easier and speeds up the ascent of a rope. [Saftly Climbing Up]: Large sharp teeth on the cam can bite rope tightly to keep climbers saftly.Self-Cleaning Cam That Enables The Functioning even On Dirty or lcy Ropes.Easy and quick adjustment with steel DoubleBack buckle,suitable for all foot.Thickened Foot pads adopts polyester yarn, firm and durable. [Wide Range of Uses]: For mountaineering,ascending a rope ,tree climbing,indoor outdoor climbing, rock climbing,outward band,fire rescue,arborist,pulley system,working on the higher level etc.