TECHNICAL SPECIFICATIONS * Array: Right-Handed Guitar/ Left-Handed Guitar/3R+3L * Guitar Gear Ratio= 1:18 * Peg Hole requirement = 10mm * Weight per pc/per set = 35 g/ 216g * String Post-Overall Height = 27.9mm * String Post Diameter = 6mm * Max. string gauge= 1.8mm * String Thru Hole Ctr Height= 21.9mm * Bushing Type = Screw-in Hex Head [https://cdn.shopify.com/s/files/1/0555/7652/7026/files/GK-D-05SP_Dopamine_Color_Guitar_Locking_Tuning_Machines.jpg?v=1718257550] PLAY YOUR MOST MEMORABLE SET YET! Tired of unreliable tuners? Effortlessly upgrade to Guyker's high-performance tuners without altering your guitar's appearance. Featuring a sealed diecast zinc alloy housing and handles, iron worm gears, and copper shafts and gears, they ensure modern tuning precision. Whether you're a professional musician or a music enthusiast, Guyker tuners guarantee smooth tuning and seamlessly blend with various guitar styles while preserving your instrument's aesthetic. Enhance your performance in rock, blues, or classical music with Guyker tuners, taking your playing to new heights. VIDEO SHOW