Here's what Hercules say about the Auto Grip System guitar hanger:
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.
- 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.