●Fits some 4 string electric bases When used with string-through bridge and string-through body ●String pitch: 0.7 inches (19 mm), 4 mounting screw holes spacing: 0.7 x 0.1 inches (19 x 3 mm) = 2.2 inches (5 ●Made of high density zinc alloy, good finish, stable and durable ●Pre-radid baseplate for more precise adjustments and better intonation ●Package Includes: 1 Set Bridge and Mounting Accessories