Using this unfinished wood cauldron brew shape is easy. First, peel off the protective paper backing that's on most of these crafts. This backing is there to keep the wood safe during laser cutting and shipping. You can use it for all sorts of craft projects. If you need a hole in the shape, just tell us the size and where you want it, and we'll do it for free. When it comes to sizing, the diameter can be anywhere from 1 to 36 inches. You can choose the thickness you need from 1/8 (3mm), 1/4 (6mm) or 1/2 (12mm) cabinet - grade Baltic birch plywood. If you want a different thickness, just shoot us a message. As for maintenance, keep it in a dry place to prevent warping or damage. And if you have any questions while working on your project, don't hesitate to message us, and we'll help you out.