This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games. 

It's the end of the world, and you need a button to press. This is it!

It's the end of the world, and you need a button to press. This is it!

It's the end of the world, and you need a button to press. This is it!

This is a small 2-Position ON-ON SPDT Switch with 3 pins.

10A 250V SPDT Foot Switch with black color.