- Rock climbing atc belay device. [1] It is designed to improve belay safety for the climber by allowing the belayer to manage their duties with minimal physical effort. The original ATC works well with rock climbing ropes 10mm and larger, while the Black Diamond ATC-XP better handles the smaller ropes used for ice climbing and canyoneering. 5mm. As a result, most climber falls are no longer catastrophic– so long as the belayer does their job, of course. It secures a climber as they are going up or down the wall. What’s a Belay Device? A belay device is climbing equipment that gives a belay to a climber. For example, one device might be used for indoor gym climbing and outdoor sport cragging. With the right belay device, a small, weak climber can easily arrest the fall of a much heavier partner. It’s inevitable because the Grigri and ATC are tried and true powerhouses in every style of climbing, from sport climbing indoors to traditional multi-pitch rock climbing outside. 7-10. eqi sqn7tn 1no alx6k pq4g9 1yh0 gd7en ecj 3xm bp2l1
