●Apply to select vintage precision bass and tele bass style electric bases ●0.4 inch (9.6 mm) pot mounting hole diameter, compatible with both inch and millimeter pots such as CTS and Alpha ●Overall Length x Width: 138.3mm x 34mm, Thickness: 2mm, Mounting Screw Hole Spacing: 125mm ●Steel plate, solid and durable ●Package includes: 1 x Control Plate with Screws