Slat wall mounting system. The Auto Swivel yoke has an AGS hanger that can rotate automatically for different shaped guitars and basses, and safely and securely holds your instrument. Specially Formulated Foam completely covers the yoke. Length: 105mm (4.1"). Load capacity: 7 kg (15.4 lbs). Slatwall insertion: 70mm x 16mm (2.76" x 0.63").