The modular design of the Kittyscape Cat Tower Play Structure Basic Kit means the different columns and available accessories are interchangeable, so Kitty'scape can be assembled in countless combinations to meet the needs of individual cat families. The Basic kit includes 3 platforms, 5 long columns (including scratching column,) 2 short columns, and a teaser toy. Can reach up to 33" high. Manufacturer Part Numbers: 62378