These fancy little keycap pullers not only feature a strong and durable design, but also include a built in switch tester (switch and DSA keycap included!)...oh and did we mention the Blue and White versions actually light up when pressed down? Because they do! Feel free to swap out the included switch and/or keycap to whatever you would like as this process is extremely easy to do. The LEDs operate off of a small coin battery which can also be replaced as needed.