Using this Pibow Touchscreen Frame is a breeze. First, take out the frame and the supplied bolt pack. Then, attach the three - layer part to the back of your 7' Raspberry Pi Touchscreen by screwing it on using the bolts. No need for any tools, just do it by hand. Once it's attached, you can adjust the two legs to set the screen at the best viewing angle for you. Remember, this frame is just a mount, so you'll need to provide your own screen and Raspberry Pi. When it comes to maintenance, you can simply wipe the frame with a soft, dry cloth if it gets dirty. Avoid using harsh chemicals as they might damage the frame's finish. Also, store it in a dry place when not in use to keep it in good condition.