Using this button pad is easy. First, you can insert either 3mm or 5mm standard LEDs into the holes under each button. Then, connect the buttons to the exposed PCB traces through the conductive circle backing. This way, you can create your unique button interface and display simple colors or full RGB colors under each button. When handling the button pad, be gentle as it's made of silicon rubber. Avoid using sharp objects that could damage it. To clean, use a soft, dry cloth. If it gets dirty, you can use a mild soap and water solution, but make sure to dry it thoroughly afterwards.