Musiclily Basic Guitar Roller String Guide Cylindrical Fender Strat Electric Black of Strat/Telecaster Guitar, (Set 4)

It can improve guitar performance, stress the strings, and keep your guitar in correct tuning for longer Base: Width 6mm x Length 11.5mm, Roller Width: 10mm, Roller Diameter: 5mm, Roller Groove (Center-Center) Spacing: 6.6mm Since it is a roller, there is less friction with the strings, reducing string breakage and extending the life of the strings. Made of metal alloy, mounting screws included Package contents: 4 string guides