X-Celerator Skate Ski Bindings JuniorThe Rossignol x Rottefella Xcelerator Junior Skate Ski Binding is a racing binding for junior racers. The binding helps improve ski control during training and in competition races. Suits junior racers with shoe size 36 to 39. The NIS key included allows you to move the binding forwards or backwards based on snow conditions, terrain and technique. The binding is set with medium flex which easily can be replaced with harder or softer flex. The flex is