Ideal for musicians, guitar technicians, and craft enthusiasts upgrading or repairing instrument output connection Precisions engineered 28.8mm size ensures seamless compatibility with standard 6.35mm ( 1 / 4 ") jacks on electric guitars and basses guitars Premium brass construction with plating ensures resistant durability and optimal electrical signals transfer for clear guitar / basses output Enhances stage, studio recordings, and practice with reliability Five piece set of guitar jacks nut provides extended service life for multiple instruments or backup needs