this is a generic button with 30mm size external, with a internal of 5.7mm to attach to the motor.
this button is available in 2 stages, simple and without personalized front plate or with personalized front plate, i've used the a smooth pei plate to create the pattern.

the button is reenforced by design in multiple points internally to make it stronger. is reenforced in 50 on the plastic fit for the motor to resist more impact.