Reporting question for Knob - Top Hat, Gibson Style see-through

Product:
Knob - Top Hat, Gibson Style see-through

Question:
What's the difference between this knob (P-K550X) and the P-K553X knob?

Answer:
These simply have the numbers painted on, while the P-K553X knobs have embossed numbers, meaning the numbers are stamped into the plastic before the white paint is applied.