The ever popular Black Diamond ATC has a unique geometry that allows for silky smooth belays. The ATC is designed for 7.7mm to 11mm ropes for smooth action. The ATC is lightweight and simple to use and with a good surface area, holds falls more easily.Other Features Material: 7075 Aluminum Rope Diameter: 7.7mm to 11mm Auto Locking: No Weight: 1.8oz Warranty: 1 Year Use: Belaying
