• Barefoot Buttons make it easy to operate your pedals without shoes, and make them look great too. 
• New design fits most true bypass stomp switches. 
• 3 stainless steel set screws, comes with allen wrench.
• CNC machined from 6061 aircraft grade aluminum.

Compabilty and sizing guide here 

From the Barefoot Buttons:

"Being a guitar player who likes to play barefoot, I had been battling the common 3/8″ chrome on/off switches on effects pedals for years. The existing switches take quite a bit of force to activate (ouch!) and are small enough to slide between your toes. Things that can make you miss triggering your pedal. Being a machinist, I was able to R & D this invention with professional musicians for years down to this final design. Along the way we learned a lot. Most of all we learned that everybody loved the look and feel of the buttons and wanted to have them on their pedalboards. So from a simple idea to solve a small problem, Barefoot Buttons was born."

FAQ

Will a version 1 button work on a version 2 switch?
Yes it will, but we do not recommend it. It is not an optimal fit and the button may not perform reliably.

What is the diameter of a Barefoot Button?
All version 1 and version 2 models, including the Tallboy, have a diameter of about 1 1/8” (28.5mm).

How tall is the Tallboy?
The Tallboy is about 7/8”(22.2mm) tall. It will raise the switch height about 1/2”(12.7mm)