Providing smooth, controlled lowering and an added safety measure to single pitch belays, the Black Diamond ATC-Pilot Belay Device is the perfect assisted braking device for your next climbing trip. This device accommodates ropes from 8.7 mm to 10.5 mm and provides an easy rope payout, making climbing less laborious and more secure. DESIGN Assisted belay device Suitable for single-rope use Durable steel construction with ergonomic non-slip surface Adds safety and security when single-pitch belaying Smooth, controlled lowering and rope payout SPECS Weight: 92 g (3.25 oz.) Accomodates rope from 8.7 to 10.5 mm Additional Details Style Number: BD620078