Zeus and Ruta Wooden Outdoor Cat Enclosure House is made of fir wood, featuring a multi-level design with platforms, a nap box, a hammock and ramps for climbing fun. Equipped with four wheels (two with brakes) for easy mobility, it has a water-resistant asphalt roof for outdoor use. The large side door allows easy access and litter box placement, fitting 1-3 cats up to 12 lbs. Assembly required.