The Performance Series ISL Balance Beam is the only one of its kind in the world and an SA Sport Exclusive. Adjustment just couldn't get any faster or easier. Infinite crank handle height setting from 65cm (25 1/2") to 132cm (52"). New leg design fits and adjusts over all 15.5' - 12cm & 20cm landing mats. New internal locking mechanism keeps the beam from slipping when the crank handle is removed. Designed to USAG, NCAA, NFHS and AAU specifications. Manufactured to FIG dimensional specifications.