Kala Ukulele Machine Heads BK
Graphtech Ratio Tune-A-Lele Ukulele Machine Heads - PRU-4004-BK - 4 pcs, Ratio ukuleke tuners, 6:1 gear ratio designed especially for ukuleles, zero backlash and zero backdrive, lightweight composite material guarantees a better balanced instrument, durable composite material stress tested to over 34 kg / 75 lbs, fits most rear mounted headstocks, two screw easy-to-install design, Ratio signature buttons, single piece weight 5 g / 0.01 lbs, set of 4 pcs.