Our small/medium/large dog and cat pet ramp can be adjusted to six different heights, adjustable stages: 15.7inch，19.7inch，21.3inch，21.6inch ，25.6inch，27.6inch -Black. Folded size: 47.2 inches long x 15 inches wide x 4.1 inches, load-bearing capacity:200LB.Upgraded with protective railings to effectively prevent dogs and cats from falling off the steps. our cat and dog ramps are covered with ridged carpet material, which can provide your pets with better grip and Traction, prevent slips, prevent them from jumping and hurting themselves. The wooden structure and stainless steel fasteners have been tested to withstand up to 200 pounds. The bad habit of jumping Our dog has the bad habit of jumping, this behavior will affect the puppy's bone growth. It can also cause knee injuries, especially small dogs. Many dogs have had knee surgery or arthritis, and this ramp prevents them from trying to jump on the furniture. In addition, ramp walking is part of their treatment. For older dogs/puppies/dogs with short legs, this ramp will help them get to bed/sofa easily. The portable pet ramp can lie flat, so you can easily store it in the car, under a sofa or under a bed without taking up too much space.