Pet Stairs/Cat Climbing Tower/Cat House 55169606Features: Upgrade the outdoors for your cats with three places to perch high above the ground Roofed and weather protected for rain or shine Rolls on wheels, letting you rearrange or bring it inside in the winter Ideal for large or small cats, allowing up to 13 lbs. Two lockable doors Assembly required Specification: Color: Dark Gray, Light Gray, Black Materials: Fir Wood, Steel Overall Dimensions: 36" L x 25. 5" W x 74. 25" H Inner Dimensions: 34.