Using these unfinished wood mushroom shapes is a breeze. First, peel off the protective paper backing that comes on most of the crafts. This was there to keep the wood safe during laser cutting and shipping. If you need a hole in your mushroom shape, send a message to the seller with the size and location you want, and they'll add it for free. You can use these mushrooms for all sorts of craft projects. They come in different diameters, from 1 inch up to 36 inches, so you can pick the size that fits your project best. As for maintenance, keep them in a dry place to prevent the wood from warping or getting damaged. Since they're made from cabinet - grade Baltic birch plywood, they're of good quality, but it's always best to store them properly. And if you have any other questions about using or taking care of these mushrooms, just click the 'Message Seller' button, and they'll be happy to help.