For color choices, see Alternate Images For those cats that like a view from the top!  Four levels with pass-thru holes in the center two for easy access, and a hiding cube at the base with openings on two sides.  Covered in quality carpet with one sisal rope post. Size: 24 square base, 69 tall.  Upper and lower trays are 11-1/2 square inside, 13-1/2 square on the outside.  Biggest tray is 17-1/2 square inside, 20 square on the outside, with a pass-thru opening to the tray below which is 15-1/2 square inside, 17 square on the outside, with a pass-thru opening to the tray below. Read less