Descripción Guitar locking tuners, 3R 3L, different colors Array: 3R 3L Guitar Gear Ratio= 1:21 Peg Hole requirement = 9.8mm Weight per pc/per set = 37g/222g String Post Diameter = 6mm Max. string gauge= 1.8mm String Thru Hole Ctr Height= 22mm  Bushing Type = Screw-in Hex Head