Using these wood earring blanks is super easy. First, peel off the protective paper backing that comes on most of the crafts. This was there to keep the wood safe during cutting and shipping. Once that's done, you can start your DIY jewelry project. You can paint, stain, or decorate the earring blanks however you like. Since they come in pairs with holes already drilled, you can quickly add earring findings to finish them. As for sizes, you have the option of 1', 2' or 3' blanks, so you can make different styles of earrings. And they're cut from cabinet - grade Baltic birch plywood in 1/8 (3mm), 1/4 (6mm) or 1/2 (12mm) inch thicknesses. If you need a different thickness, just let the seller know. To maintain these wood earrings, keep them away from excessive moisture and direct sunlight. This will help prevent warping or discoloration. If you have any questions during the process, don't hesitate to message the seller, and they'll assist you.