1 pcs Bass String Guide & 6 pcs Mushrooms Head Guitar Strap100% Brand New and High QualityFine workmanship and perfect style.Head diameter: 13.4mm, Total length: 24mmFit for Guitar, Ukulele, easy to installstring guides (string trees) help minimize tuning problems and sympathetic overtones caused by low string tension.Material: MetalColor: Silversize: 10 x 19mm & 13.4 x 13.4 x 24mmPackage Contents:1 x Stable buckle1 x screw6 x Strap LocksOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.