Ukulele Machine Adjustment Knob, Single Rotary Knob Box for Ukleee Sex Machine Series
- Piece#1: The textured side faces the main panel, and the smooth side faces the knob.
- Piece#2: Both piece#2 and #3 are sandwich between two brackets. The smooth side faces the knob.
- Piece#3: Get stuck in the fixed position of piece#2 and secure it in place.
- Piece#4: The larger, irregular side faces the knob, and the smaller, round side faces the main panel.
The final step is to tighten all parts in place after securing them.