The Edelrid Eddy is the perfect belaying device for challenge course programs. The revolutionary Eddy is simple to use. Key features include: Ability to use from 9mm to 11mm ropes, logical threading of the rope and a built-in emergency breaking system that eliminates the "panic pull" that could lead to serious injury with other auto-locking belay devices. The Eddy’s breaking cam is completely internal eliminating dangers of your belayer accidentally holding the cam in the open position. These features and its simplicity convinced Climbing Magazine to name it Editors’ Choice. CE Certified.