Using these unfinished wood sunflower shapes for your DIY flower crafts is easy. First, peel off the protective paper backing that comes with most of the crafts. This was there to keep the wood safe during laser cutting and shipping. If you need a hole in the shape, tell us the size and where you want it when you order. You can choose from sizes between 3' and 36' and different thicknesses like 1/8 (3mm), 1/4 (6mm), or 1/2 (12mm) inch cabinet - grade Baltic birch plywood. Just message us if you need a different thickness. When it comes to maintenance, keep the wood in a dry place to prevent warping. And since these are unfinished, you can paint, stain, or decorate them however you like to make your perfect flower craft. If you have any questions, don't hesitate to message the seller.