Deluxe heavy-duty wood construction. 3 compartments to accommodate approximately 20 to 25 bats. Easy-to-mount to trees, house, post, fence, etc. House should be placed 10 to 15' 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" x 4-3/4" x 15" H.