4-Level Cat Stair Ladder, Kitten Tree Climber, with Hanging Play Ball, Steps for Bed, Sofa, Light GreyFUNNY DESIGN: There is a small platform with a ball in the middle of the highest pillar. Cats can jump directly to the top by stepping on the small platform without taking the stairs. COZY MATERIAL: Each step of this cat toy is lined with soft flannel gentle on your kitten's paw and is comfortable for them to play and sit on. PORTABLE TREE: Lightweight and compact, you can move around the cat steps at will, not only at home but also very convenient