The "Mission Control" knob for 1/4" smooth shaft potentiometers is just right for single-knob builds, like volume knobs, boosts, and fuzzes. It's great for when you want to communicate that moving this knob just a little bit is a SERIOUSLY BIG DEAL.
At 32mm in diameter, and weighing in at a full ounce, this mega-knob screams "high-end" and makes the outside of your build look as highly refined and well-thought-out as the circuit you designed for the inside.
Solid aluminum knob
Black with white indicator, silver with black indicator, or cream with black indicator
2mm hex screw
For 1/4" (6.4mm) smooth shaft potentiometer
32mm outer diameter
Need a tool to tighten this hex screw? Get the 2mm Allen wrench.
P.S.: The cream Mission Control knob is a pretty close dupe for the knobs on Kurt Cobain's Martin D18E acoustic, which he famously played in 1993 on MTV's "Unplugged!"