Features:
Each string retainer is the type with the two little rollers on them to help stay in tune and help prevent strings from breaking.
The rollers lessen the stress on your strings,prevents wear and tear on the strings,which allows the guitar to stay in tune longer,also results in longer string life.
Mounting screws is included,easy to use.
Color:Chrome.
Material:Metal.
Base is 6mm wide x 11.3mm long.
Total height including roller is approx.12.3mm.
Roller width is approx.10.6mm.
Roller diameter is approx.5mm.
String Spread (center to center) is approx.7.2mm.

Package Include:
2 x Roller Guitar string tree
2 x Mounting screws