Get the classic fluted Boss-style knob in a 27mm outer diameter and . . . in COLOR! Stay classic with black, or update your aesthetic with white, cream, red, dark blue, or clear.
A removable film protects the mirror cap and keeps it shiny in transit, and a brass cup insert with a flat-head set screw securely holds it to a 1/4" smooth shaft potentiometer.
Boss style knob
Plastic with indicator
For 1/4" (6.4mm) smooth shaft pots
16mm (.62") tall
27mm (1.06") outer diameter at the skirt
Note: I've got six different sizes of classic fluted Boss-style knobs, from extra-small (14mm) to extra-large (45mm). Check out the measurements below for a size comparison.
The Middle: 14mm x 13mm
The Tall Boy: 16mm x 12mm
Medium: 27mm x 16mm
Large: 33mm x 16mm
Extra-large: 45mm x 20mm
Tip: The term "Boss" refers to the aesthetic design of this knob, with the mirror cap inset into a plastic knob shell. A Boss-style knob will not automatically fit all Boss pedals. The right fit depends on the shaft size of the knob's potentiometer. Read this post to figure out what kind of knob you need: https://lovemyswitches.com/news/what-knob-will-fit-on-my-gear/