Using these unfinished wood cake - shaped crafts is a breeze. First, peel off the protective paper backing. This paper is there to keep the wood safe during laser cutting and shipping. If you need a hole in the shape, just let the seller know the size and where you want it, and they'll add it for free. You can use these crafts for all sorts of DIY projects. The wood comes sanded, so you can start working on it right away. As for sizes, you can choose from 1' up to 24'. The crafts are made from cabinet - grade Baltic birch plywood in 1/8 (3mm), 1/4 (6mm), or 1/2 (12mm) inch thickness. If you need a different thickness, reach out to the seller. When it comes to maintenance, keep the wood away from excessive moisture to prevent warping. You can paint, stain, or decorate these wood pieces as you like to make your unique creations. And remember, the seller ships within 24 hours, so you'll get your crafts quickly to start your project.