Features: 1.3 machine heads in a line, and there are 2 tuning keys, one is for the left, the other is for the right. 2.With a white ABS knob, it is easy to tighten and loosen, and the appearance is also very delicate. 3.Ideal to replace your old and damaged tuning keys and suitable for folk rhyme guitar tuning. 4.The locking device on the pegs can prevent the strings from sliding, and the strings do not need to be repeatedly wound many times. 5.The kit contains 3 left and right guitar tuning buttons and some screws, which is very convenient to install. specification:Item Type: Guitar Tuning Key Material: ABS handle + A3 steel plate + iron string column + copper gear Divided into left and right, 3 on each side, single-hole steel column with flower head PackageList: 3 x RightGuitar Tuning Key 3 x LeftGuitar Tuning Key 12 x screws