AGS Auto Swivel Hanger Stand for Electric, Acoustic, Classical Guitars or Bass, Automatically rotates to fit guitars or basses of different shapes upright and secure, Can fit a wider range of instrument neck sizes from 40mm to 52 mm (1.57” – 2.05”), the NINA (Narrow Instrument Neck Adjustment, HA301) system is specially designed to increase the thickness of AGS necks to accommodate narrow neck instruments from a minimum of 28 mm (1.10”) such as banjos and mandolins, attractive wooden base with black finish, arm length: 105 mm (4.1”), load capacity: 7 kg.