So, our ten year old pit bull mix is having trouble with her hips and I have been feeling bad that she can no longer jump up onto the bed anymore, especially since her year old sister jumps up and leaves her sitting watching while she gets all the love! I got these before I noticed the weight limit, which says 40 lbs. but they have been able to handle her 60 lb. weight fine, as long as it is just for a quick step up. These stairs are quite high. I’ve posted pictures by our bed, which is an extra thick, high mattress, as well as by our guest bed, which is just an older standard bed. As you can see, the stairs will get your dog up to both but actually works better on the high profile mattress. The stairs came mostly together, you just have to put the first top few stairs into the zippered case. This took a little pushing and squeezing to do, but just go slow on the zipper and you will do fine. Happy that our girl is able to join us once again for family snuggles!