Stabilizes guitars during string-changes. Designed to gently and securely support the guitar, The Headstand makes the string changing process hassle-free. The compact size and collapsibility allow you to store The Headstand in your case, so it's there whenever you need it. Product Dimensions (folded): 5.25" x 1.18" Product Dimensions (standing): 5" x 4.25". (Not intended for use with Banjos and mandolins)