Using your unfinished wood Leo sign is easy. First, peel off the protective paper backing that's on the craft. This paper is there to keep the wood safe during laser cutting and shipping. You can customize the sign by adding a hole if you want - just tell us the size and location. For sizing, you can choose a diameter from 3 inches up to 36 inches. The sign is made from cabinet - grade Baltic birch plywood in 1/8 (3mm), 1/4 (6mm), or 1/2 (12mm) thickness. If you need a different thickness, don't forget to message us. As for maintenance, keep the wood away from excessive moisture to prevent warping. Since it's unfinished, you can paint, stain, or decorate it however you like to fit your project. And remember, our team in the Pittsburgh suburbs hand - makes these with great attention to detail. If you have any questions, just click the 'Message Seller' button and we'll help you out.