If your AirForce Edge air rifle is used by more than one shooter or you've got a shooter who's growing and needs to adjust the gun's weight depending on height and growth, then these Flexi-Weights are the ideal way to accommodate change. Rapidly put them on and take them off. Easy to attach additional weights, too. Simply slide on and hold tight with the included o-ring. This economical 5-weight kit is ideal for clubs.