â- Designed with 4 stories suitable for whom owns more than 1 catâ- 4 stories with a vertical design would not take up much floor spaceâ- 2 middle layers come with 2 holes for cats to climb up and downâ- 3 hideaway condos allow cats to play hide and seek with youâ- The sisal scratching boards allow kittens to release the scratching urgeâ- The scratching boards are covered by natural sisal safe durable and pet-friendlyâ- The soft plush cushions are safe for kittens to rub their face and nu