Made of unfinished wood. These bird feeder kits make fun outdoor project for kids and adults. . Makes 12 bird feeders. Manufacturered by Fun Express. Size: 5 3/4" x 4 1/2". Includes hardware. We recommend using wood markers or acrylic paint sold separately. Do It Yourself DIY Bird Feeder Kits. use your own colors and embellishments to decorate these Bird Feeders. Then set it up and enjoy as the birds themselves add even more color to your creation.