Grover Mini Rotomatics 14:1 Ratio Chrome (205 Series) 3+3 Tuners The 205 Series is the ultimate in sleek design and performance. Small and lightweight, these precision-made machine heads fit guitar headstocks that will not take full size machines. The mini buttons provide more space for player’s fingers (even large fingers) to tune strings. Gear ratio is 14:1. Sealed in lubrication keeps the mini perfect for a lifetime! Sealed-in, lubricated gears 14:1 gear ratio 25/64” post hole Post length to hole: 20.55mm Overall post length: 26.9mm Weight per pc/per set: 1.2oz/7.2oz Max. string gauge: .074” Hardware included (bushings, washers, screws)