The Hercules GS455B AGS is a Guitar floor stand with an auto grab system yoke, hand grip height adjuster and a folding backrest. The Hercules GS455B is a stand with a folding Auto Grab System that holds your instrument. Flip the AGS up into place. To pack up, pull out on the sleeve and fold down. The Auto Grab System is driven by the weight of the guitar or bass. When placed in the yoke, the housing slides down, rotating the arms to secure it. A special Hand Grip Height Adjuster enables you to raise or lower the stand to the desired height. A locking pin prevents slipping and provides solid and stable support for even your heaviest guitars and basses. A Folding Backrest towards the bottom of the stand and the grab Yoke are both coated with SFF lacquer-safe rubber.