The Original Birdie Buggy Birdhouse, designed after an Amish Buggy. Hand Made in the USA. Solid 5/8" wood with real cast aluminum wheels and shafts. House size (not including hitch) is 8" x 8" x 5-5/8". Designed for house wrens and other small birds. Hole opening is 1" diameter. The top is removable for easy cleanout. Place on the porch or deck in early spring to enjoy the beautiful song of the wren all summer long. Ready to hang.