This beautiful set of three on a plate nylon string Classic tuners has a decorative highly polished chrome mounting plate with white plastic faux pearloid buttons. The worm gear is chrome plated while the ring gear is brass and secured to the string post with a black finished mounting screw. The string post is metal with a plastic shroud covering. Price is for a set of 2 tuner strips (consisting of 3 left and 3 right tuners) as shown in the picture. Mounting screws included. Important Specs and Dimensions:String Post Diameter = 3/8 in. (9.6mm)String Post Length from baseplate = 1 13/64 in. (30.72mm)String Post Ctr to Ctr = 1 25/64 in. (35mm)Button Shaft Length from edge of plate = 7/8 in. (22.3mm)Base Plate length = 4 21/64 in. (110mm)Mounting Plate width = 21/32 in. (16.8mm)Outer Mounting Hole spacing Ctr to Ctr = 3 3/4 in. (95.45mm)Outer Mounting Hole to center mounting hole spacing = 1 3/16 in. (30.15mm) Center Mounting Hole to Center Mounting Hole Specing = 1 25/64 in. (35.5mm)