[ASCENDER SIZE] Works greatly with diameter 10-13mm static rope

The upper hole is usually used for carabiner

rope access

2''(75- 120cm)

which is durable and anti-wearing

NewDoar Climbing Abseiling Belay Device ATC Rappelling Descender 25KN V-grooved Equipment-Orange chest ascender [ASCENDER SIZE] Works greatly with[Material]: Aluminium and Magnesium alloy forging. Weight: belay device: 60g 0. 132lb. [Double Slots Construction]: NewDoar descending Belay device offers effective braking to half, twin and single ropes, 8~11mm ( 0. 315 0. 433 inch). Breaking Strength: 25KN, Used with half, single or twin ropes. [Assures Safety]: High modified ""tube"" style belay device and V shaped groove channel, friction mode offers 3 times greater hold and stopping power than