Three plush-topped steps climb 18.5-in on an 18-in by 13-in footprint, bridging the gap to a tall bed or sofa for cats that no longer take the jump in one go. Senior cats, kittens, small dogs, and rabbits all use the same gentle rise. Each tread holds 33 lb, so a small dog can share the stairs with the cat. Sisal posts run up the side, which turns the unit into a scratching station between trips and keeps it in use when nobody is climbing. The whole piece weighs 11 lb and shifts from bedside to couch in one hand.