JZROCKER 1 Piece Upright Bass Tuner Machine Double Bass Tuning Pegs for Head Winder Pegs Double Bass Metal Tuner Pegs

and matal , . Easy and conveneint to install and use. Stable rotation, sound is stable. You may set up freely.You may also like Wilkinson VINTAGE Golden TUNERS Electric Guitar Machine Heads Tuners For ST & TL Guitar OR Similar WJ-55 Gold Tuning Pegs.