●For use with jazz base type electric bases ●Compatible with 0.4 inch (10 mm) pot mounting hole diameters, including CTS and Alpha, and both inch and millimeter pots ●Overall Length x Width: 151mm x 68mm, Thickness: 2mm, Mounting Screw Hole Spacing: 122mm and 50mm ●Steel plate, solid and durable ●Package includes: 1 x Control Plate with Screws