The Purrfect Perch is kitty spiral staircase excellent as a
free-standing outdoor cat tower or a way for your cats to get from a
window cat door to the ground. As a cat tower, your cats will enjoy
commanding views from as high as 6' off the ground. Use the cat perch
in front of a window with a cat door and your cats will have an 11 1/2" x
18" (292mm x 457mm) landing with a spiral stair to ground level.