Air chair hydrofoil, by far my favorite water sport. Its unlike anything else, extremely easy on your body, no strain on your back or arms. Its all on the foil. Its a ton of fun, whenever I ride it people want to ride in the boat to watch it fly out of the water, also known as a sky ski. Other boaters stop to ask about it all the time. Comes with an intermediate and advanced fin. Unfortunately Im the only one that rides it, looking to get into jet skis as my kids just got boater safety certificates. It comes apart easily for easy transport, going to regret selling it but my kids having fun is more important.