Wooden boards are made of 3/16" thick plywood. Pre-cut and slotted. Easy to build and paint fun crafts you can make with your kids. Manufacturered by Caige. Great for hand-eye coordination creative expression fine motor skills pretend play and self-confidence. Your satisfaction is the most important. If you have any questions about our products please contact us and we will provide you with satisfactory solutions within 24 hours. Package includes 2 unassembled birdhouses with 12 paints 3 brushes 2 strings and 2 glues.