Get quicker lap times and knock seconds off your slalom time. These are a Must for awsome handling (Slot Car Turning)& top speed (Real World fastest on planet). Made of strong lightweight G-fiber materials (not plastic). They are lighter then other Jet Ski sponsons and streamline in design for the ultimate in handling and top speed (like riding on rails). Aggresser Sponsons are thinner (1/4 inch thick) and have less drag then all other Sea Doo sponsons. These Jet Ski sponsons do not create aggraviting boat lift, and help in reducing porposing (keeps pump in the water for better hook up and excelleration). These adjustable sponsons have UV protection from the suns harmful rays. Also, will out perfrom other sponsons. The Aggresser are machined on the back side of sponsons to match up against your hull for a custom fit. Available for: Kawasaki, Yamaha, Honda and Sea Doo. If you have any questions during install please call before installing Sponsons to get the perfect fit. We will be glad to walk you through installation!!! Aggresser is a trade mark of AGGRESSER MFG.