Using these unfinished wood sign board silhouettes for your DIY crafts is easy. First, make sure to peel off the protective paper backing that comes with most of the crafts. This was there to keep the wood safe during cutting and shipping. If you need a hole in the shape, just tell us the size and where you want it, and we'll add it for free. You can use these silhouettes for all sorts of craft projects. They come in sizes from 3' to 36' and are made from cabinet - grade Baltic birch plywood in 1/8 (3mm), 1/4 (6mm), or 1/2 (12mm) inch thicknesses. As for maintenance, keep them in a dry place to prevent warping or damage. Since they're unfinished, you can paint, stain, or decorate them however you like. Just have fun with your crafting!