The HERCULES Auto-Swivel Yoke Hanger GSP38WB rotates automatically to accommodate different shaped guitars or basses vertically and safely. It features an attractive wood base for home or studio use. Features: The Auto-Swivel Yoke with Auto Grip System allows for multi-angle adjustments while safely locking instrument in place. Attractive Wood Base. Specially Formulated Rubber Foam fully protects instrument at all contact points.