Deluxe heavy-duty wood construction. 3 compartments to accommodate approximately 20 to 25 bats. Easy-to-mount to trees, houses, posts, fences, and more. House should be placed 10 to 15 Ft. high and not have anything near the entrance to the house. Place in a southerly exposure to catch the sun and shelter from the wind. Dimensions: 8 In. W. x 15 In. H. x 4.75 In. D.