NewDoar Climbing Stop Descender Rappelling Belay for Rope 9-12mm Novices for Rescue-Blue Grab Ascender' [Keep Your Safety]: It uses

[Keep Your Safety]: It uses the friction between the rope and the Descender device to slow down the descent or brake

tubular type

this tandem double pulley is very lightweight and durable

adds the friction and protects climber's hand

If used on an 8mm diameter rope

NewDoar Climbing Stop Descender Rappelling Belay for Rope 9-12mm Novices for Rescue-Blue Grab Ascender' [Keep Your Safety]: It usesSafty Guarantee]: CE 1019 EN 341 ensures its security. Climbing Descender you can trust. Weight limited: 330 lb(150kg),Breaking Strength: 1. 47kN . Suitable for 0. 35 0. 47(9 12mm)inch dia. Ropes. [High Quality]: Stop descender made of hot forged aluminum magnesium alloy, which has the characteristics of high strength, light weight and convenient carrying. [Easy to Install]: Device can be rapidly installed or removed from the rope without