Using this box is easy. First, take off the end - plates if you want to customize them or install your circuit board. Slide your custom PCB into the slots inside the box. Then, put the end - plates back on and use the included screws to secure them. When it comes to maintenance, just use a soft, dry cloth to wipe the box clean. Avoid using abrasive cleaners as they may scratch the anodized finish. If you lose a screw, you can replace it with a 6mm - long, M2.5 - sized screw with a 0.45mm pitch. Also, be careful when machining or drilling the box to avoid any sharp edges that could cause injury.