Using these unfinished wood moon and star silhouette crafts is easy. First, peel off the protective paper backing that comes on most of the crafts. This backing is there to protect the wood during laser cutting and shipping. If you need a hole in the shape, just let the seller know the size and location of the hole, and they'll add it for free. You can use these crafts for a variety of DIY projects, like wall decorations or part of a larger art piece. As for sizing, they're available in diameters from 2 inches up to 36 inches, so you can choose the right one for your project. When it comes to thickness, they're cut from 1/8 (3mm), 1/4 (6mm), or 1/2 (12mm) cabinet - grade Baltic birch plywood. If you need a different thickness, just send a message to the seller. To maintain these wood crafts, keep them away from excessive moisture to prevent warping. You can paint or stain them according to your design needs. If you have any questions about the product, don't hesitate to click the 'Message Seller' button for help.