(Solvit Pet) PupStep+Plus Pet Stairs are super lightweight at only 5 lbs., the unique construction of these stairs supports over 120 lbs. There is no assembly required, and they fold down for easy storage. Safety side rails are built into the design so your pet can climb up and down with confidence. Perfect size for couches or beds, and includes non-skid feet. The stairs can also be used for pets needing help into vehicles. Note: Although they are super strong, the stairs are recommended for small- to medium-sized pets, due to the size of the stair treads.