The Sea Wing inflatable sponson adds a lot of stability to any sea kayak. Durable, heavy duty material. sponsons are very little used, and in excellent condition. They attach quickly via center-squeeze buckles. By providing more beam (width) to your kayak, the Sea Wings add tremendous stability in two directions, instead of just one when comparing it to a paddle float/outrigger. They deflate and store compactly when not in use.