A Set 2 Pcs Electric Guitar Roller String Tree String Retainer - Silver size: 13*11.2mm Package Include: 2 x Roller Guitar string tree 2 x Mounting screws Notice for purchasing the accessories of the electric guitars As there are so many different kinds of electronic guitar accessories with exquisite sizes and the suppliers for these goods are different, please ask the exact size to the sellers directly. Please measure your size exactly and then let us know. We sell only according to the size listed by yourself in the order. Only 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. 100% new, never used item 100% like the picture shown Material: Metal Colors: Silver