"Specification:
Color: Black
Material: Metal
Size: Base is 6mm wide x 11.5mm
Total height including roller is 12mm
Roller width is 10mm
Roller diameter is 5mm
String Spread(center to center) is 7mm
Weight: 10 g

Package Included:
1 Set Guitar String Trees
2 x Screw

Features:
1. Pair of Roller Guitar String Trees
2. Two little rollers on each tree.
3. The rollers lessen the stress on your strings which allows the guitar to stay in tune longer.
4. This also decrease wear and tear on the strings which results in longer string life.

Note:
100% Brand new,never used
Item's color might be different from the picture because of the aberration."