Control potentiometers are among the world's most widely used guitar tone and volume controls.
It takes ten times the power to make something sound twice as loud. That's why pots are a critical component of any guitar. They allow you to manipulate your tone & volume to find a sweet spot that works for you.
You would typically (but not restricted to) use the A500K for tone & the B500K for volume. 500K pots are the standard for Humbuckers & 250K for single coil pickups.
Includes a flat washer & lock washer.