The Premier Pet plastic steps are lightweight and sturdy enough to support my 15 lb senior dog’s weight. I like that these durable steps are harder than foam steps because of the plastic and is more supportive for her joints while the felt with adhesive backing stays in place and is soft and comfortable on my dogs paws. I love that this pet stairs is folds for easy transporting and storage when not in use by pressing the two buttons (one on each side inward while folding) and the four steps height help her get up and down from couches and chairs easier. At first she wasn’t used to the one extra step height and I used treats to help her get used to the new steps quicker. I highly recommend these plastic steps for helping senior pets with joint or arthritis get up and down easier.