ABM 5050S aged Single Cut Tremolo, solid cold work steel base plate with advanced string guide, direct replacement for 6-point mounting with 53 mm string (56,36mm drill hole spacing), cold rolled steel saddles with threaded saddle-screw-flanks, two custom made torpedo-knobs, without any edge, hardenend mounting screws, two tremolo blocks made of cold work steel and bell brass, for individual tonal configuration, plug in stainless steel tremolo bar with adjustable clearance, finish: nickel