Using these unfinished Caribbean Antigua country shape wood crafts is a breeze. First, peel off the protective paper backing before you start your DIY project. You can customize them by adding a hole - just tell us the size and location you want. The crafts come in sizes from 3' to 36' and are made of cabinet - grade Baltic birch plywood in 1/8 (3mm), 1/4 (6mm), or 1/2 (12mm) inch thicknesses. For daily maintenance, keep them in a dry place away from direct sunlight to prevent warping. If you have any questions during the crafting process, don't hesitate to message the seller.