Using these plastic button caps is easy. First, find a tactile switch body with a 2.4mm square top. Then, simply snap one of the caps onto the top of the switch. You can use them to customize your PyGamer or other devices. Remember, the tactile switch body is not included, so you'll need to get that separately. When it comes to maintenance, just use a dry cloth to wipe the caps clean if they get dirty. Avoid using sharp objects on the caps as it might damage them.