Nux Pedal Topper is a stomp box switch cap, it allows you to get a more comfortable and stable feel on your foot while performing.
Do not think twice before hitting the switch on your pedal board, it is very useful for any effect pedals or control pads that you want to put on your pedal board (important to hit the switch quickly).
This will fit most of the 3-PDT switches on the pedal board.
Pedal toppers are useful for all kinds of pedalboards. They allow you to put the pedals in different places on your pedalboard. To change the control of your pedals while playing live, just change the switches.