The HERCULES Ukulele Stand UKS100B features the foldable Auto Grip System (AGS) yoke, The folding built-in Auto Grip System safely locks the instrument in place. It can accommodate ukuleles of all sizes from soprano to baritone ukuleles, The Instant Height Adjustment Clutch with Locking Pin adjusts stand height quickly, easily and securely. Specially Formulated Rubber Foam fully protects the instrument at all contact points. Foldable Auto Grip System (AGS) yokeInstant Height Adjustment Clutch Sp