Half moon truss rod washer for Gibson,Big or Small size choiceMaterial:Stainless SteelPlease choose the size on the above option.
Big size measurement:
Width:18.3mm,Height:10.8mm,Thickness:2.5mm,Hole diameter:5mm
Small size meausrement:
Width:12mm,Height:10mm,Thickness:2.5mm,Hole diameter:5mm
