Attributes

Brand	-
Category	Root / Musical Instruments/Guitars/Pianos/Accessories
Origin	-
Material	High-Impact ABS Plastic
Hole Diameter	6mm (0.236 inches)
Knob Type	Slotted / Speed Control
Color Options	Black, White, Red, Blue
Compatibility	Standard 6mm Potentiometer Shafts
Package Quantity	4 Pieces per Pack
Brand	Houlang Music
Application	Electric Guitar & Bass Effect Pedals
Installation	Push-On Fit with Set Screw
Weight	15 grams (total pack)

6 reviews

Anonymous

Mar 21, 2026

Rating: 5/5

Durable and stylish

I've been using these for three months now on my touring rig. They haven't cracked or faded despite heavy use. Highly recommend for gigging musicians.

Anonymous

Mar 19, 2026

Rating: 3/5

Good but tight fit

The quality is good, but the fit is very tight on my older pots. Had to push quite hard to get them on. Once on, they are secure though.

Anonymous

Mar 10, 2026

Rating: 4/5

Great value for the price

Bought these to replace some worn-out caps on my DIY stompboxes. They look professional and the 6mm hole is precise. One cap was slightly loose, but overall happy.

Anonymous

Mar 09, 2026

Rating: 5/5

Perfect fit for my pedalboard

These knobs fit perfectly on my vintage pedals. The slotted design makes it easy to see the position at a glance during live performances. Very sturdy plastic.

Anonymous

Mar 08, 2026

Rating: 5/5

Exactly what I needed

Fast shipping and exactly as described. The black finish matches my existing gear perfectly. No issues with installation.

Anonymous

Mar 07, 2026

Rating: 5/5

Clean look for custom builds

Using these for a custom pedal build project. The slotted style gives it a classic retro vibe. Excellent quality control from Houlang Music.

5 FAQ

Q: Will this fit a 1/4 inch shaft?

A: No, these are specifically designed for 6mm metric shafts. A 1/4 inch shaft is approximately 6.35mm and will be too large for these caps.

Q: Do these come with set screws to secure them?

A: Yes, each knob includes a small set screw to prevent it from spinning or falling off the potentiometer shaft.

Q: Can I use these for volume knobs on an electric guitar body?

A: While they physically fit 6mm shafts, these are optimized for effect pedals. Guitar body knobs often require a different profile or brass inserts, so check your specific guitar requirements.

Q: What is the return policy if the size is wrong?

A: We offer a 30-day return policy for unused items in original packaging. Please contact our support team to initiate a return.

Q: Are the colors solid or translucent?

A: The colors are solid opaque plastic, not translucent. They do not let LED light pass through.

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