Senior & Small Pet Friendly: The dog ramp for bed is foldable and has four height adjustment levels. The dog stairs is covered with soft carpet and has four solid wood ridges to prevent slipping. Studies have shown that using a low-angle dog ramp, like this one, can reduce stress on joints. The gentle slope and non-slip ridges help older dogs or short-legged breeds (Dachshunds, Corgis) climb easily. Adjustable Height for Beds, Couches & SUVs: The dog ramp for couch have four adjustable heights, including 7.3 inches, 12 inches, 15 inches, and 17.3 inches. Perfect for tall beds or car doors.