30mm Arcade Button (Green)
A button is a button, and a switch is a switch, but these arcade buttons are in a class of their own. They're the same size as common arcade controls (often referred to as 30mm diameter) but have some nice things going for them that justify the extra dollar.
The button action is smooth, without a strong click, yet you can definitely feel when the button is pressed. A tiny micro-switch is pre-installed, with gold plated contacts. They are good for arcade game console, game controller DIY.