Step Pet Stairs: Our stairs are the perfect accessory to help pets reach that high bed or couch! Available in 3-step and 4-step configurations to easily match your furniture’s height. High Quality: Stair made of 30D high density foam,no frame, high rebound, not easy to lose shape. Save Time: Each stair cover is removable and machine-washable! Easy to clean and maintain for long-lasting use. Dimensions : 18 x 15 x 13.5 inches. Assembly required. Our pet steps are suitable for pets of all ages. Whether it’s a young puppie, small in size, or an old or injured dog, dog stairs can help them easily reach the bed,couch,sofa,stool and other places and make them safer when going downstairs.