I really love these jumps. They are easy to set up, are quite stable, and are worth the money to not have to mess with cutting PVC myself LOL! I have purchased about 12 of these for my training center (along with the jump cup strips) and they get a ton of use and have held up well. The adjustable cup was great when I just used these for my personal dogs who all either jump 16 or 20, so I just marked those off and was easy to slide up/down for the given dog.