10pcs guitar roller string trees chrome for electric guitar accessory set are4

100% brand new and the rollers lessen the stress on your strings which allows the guitar to stay in tune longer. this also prevents wear and tear on the strings which results in longer string life. base is about 6mm (1/4") wide x 11.5mm (7/16") long total height including roller is about 12mm roller width is about 10mm roller diameter is about 5mm string spread (center to center) is about 7mm color: chrome 10 x chrome roller string trees