Our MaxWorks 50524 61" Portable Folding Pet Ramp requires no assembly. Just remove the packaging, unfold the ramp, and it is immediately ready to use. It is constructed with high-quality plastic making it rust and corrosion resistant, very easy to clean, and as durable and reliable as possible. The high traction surface paired with the raised side rails improves your pet's security when using the ramp. It can also be folded effortlessly, making our pet ramp easily storable and portable. It has a weight capacity of 165 lbs., allowing your pets to simply climb into or out of your vehicle. The folded dimensions of our ramp is 31.3" x 16" x 8", while the unfolded dimensions of our ramp is 61" x 16" x 6".