Detail 01
19.15 mm × 18.92 mm
Compare these measurements with the existing buttons before making the swap.

Independent shopping perspective
Gold keystone buttons give Grover 102 through 509 series instruments a visible hardware update without changing tone or playability. Six buttons and their screws are supplied together, keeping the work centered on the button swap. The 19.15 mm × 18.92 mm size is the key detail to compare before ordering. It is a focused customization part for guitarists and bassists who want to change their instrument’s appearance.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Compare these measurements with the existing buttons before making the swap.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
The package contains six keystone buttons and includes screws.
No. They are described as changing the instrument’s look without affecting tone or playability.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.