The EL 4 5 GW AC is a safe, performance driven binding for young skiers of all levels Featuring super easy handling and the highest safety standards, these bindings guarantee rapid progress for aspiring young speed champions The bindings also offer precision response, hold and reduced load on joints, creating an easy to ride binding that gives kids the advantage of both agility and safety on the hill AC = these bindings will fit both adult and children ski boots Additionally, these bindings also accommodate GripWalk and GripWalk Junior ski boots The choice is yours