2 story, 12 room purple martin house features easy snap assembly, easy access for cleaning, ventilated to provide a cool nesting area, drain holes allow moisture to escape, and guard rails to protect young martins. Constructed of UV fade-resistant plastic. Compatible with the Model No. MP15 (SKU 739393) martin house pole system (sold separately). Assembled size: 21 In. W. x 18 In. H. x 20.5 In. D. Color: Green floors and roof with white walls.