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 Wakestar. Great for hand-eye coordination creative expression fine motor skills pretend play and self-confidence. Check our store Wakestar for more kids crafts & gifts. Package includes 2 unassembled birdhouses with 12 paints 2 brushes 2 strings and 2 glues.