Gikfun

Gikfun 12mm Waterproof Push Button Momentary On Off Switch 5 Colors DIY Kit for Arduino (Pack of 10pcs)

$9.38 ~~$9.98~~

Mounting hole: Approx. 12mm
Color: yellow, blue, red, black, green
Package includes: 10 x Waterproof Push Button in 5 colors
Press the button, power on; release it, power off
The terminals are very small, need to be very careful when soldering the wires on to them.