5 BLUE STOVE TYPE POTENTIOMETER OR ROTARY SWITCH KNOBS
Pack of five (5) plastic switch or potentiometer knobs which will fit most types of potentiometer with shafts up to 6.4mm diameter.
The knob has a small grub screw which it tightened up onto ythe pot shaft, so it will work on splined, smooth or D shaped shafts.
These knobs sometimes called stove knobs are often used on guitars, amplifiers and other electronic items.