These bass guitar parts are lightweight and portable, have long serve life The product size is about 2.56×0.53×0.46in/6.3×1.35×1.18, and mounting hole distance is about 1.2in/3.05cm You will receive 3 pcs thumb rests with 6 mounting screws, easy to install It is an important guitar part and replacement accessory for guitar enthusiasts, performers or bands Fits for electric bass guitar and wood bass guitar, providing you with good guitar playing experience