GOTOH UPT (short post)/UPT (long post) Planetary Ukulele Tuning Machine 1:4 Planetary Gear Ratio 15.0(UPT)and 15.9(UPTL) grams per machine head Gold color pearloid button knobs 9.7-10mm diameter headstock holes required UPT is for headstock thickness of 10-12mm UPTL is for headstock thickness of 11.5-13.5mm Set of 4 tuning machinesWith GOTOH's UPT/UPTL you can get the look of traditional uke friction pegs but without the slippage or need for tightening.

With GOTOH's UPT/UPTL you can get the look of traditional uke friction pegs but without the slippage or need for tightening.