auto locking belay device
FeaturesThe Eddy is no Grigri, and it costs twice as much but more secure:
The lever assembly consists of a green control lever connected to the cam by a steel link. Pulling the lever downward forces the link upward, opening the cam; however, once the lever passes a certain point, the link disengages and the cam rotates closed again under rope tension. At this point, raising the lever opens the cam; but again, the action stops if the lever moves too far.
External Linksmanufactures page
Special NotesIt can also be used for top rope soloing