The Eddy has established itself since its introduction in 2005 as a top end belay device predominantly for sport and indoor climbing. The Eddy is simple and safe, easy to thread with the rope following a logical flow through the device. A controlled descent with an emergency break system eliminates the "panic pull“ syndrome which can lead to serious accidents. The Eddy provides maximum safety whether top roping or lead climbing with easy paying out of the rope to the leader. For use with single ropes from 9 to 11 mm diameters.