As it freely glides through the hardware located in the back, it increases your mobility without sacrificing your comfort since the neck/shoulder pad always stays in place. Fits most saxophones - ideal for Alto, Tenor and Bari saxophones. A design for men, women and youth. Easy to attach with a unique swivel hook. Approx size. 14.5" - 19" (36.8cm - 48.3cm). Measured from the top of the shoulder to the bottom of the hook.