Tough welded nylon PVC split stern air bags for use in most modern whitewater kayaks with centre buoyancy. Eylets fitted for security.
30 Litres of volume to fit most modern white water kayaks. You can always make a big air bag smaller, but you can't make a small air bag bigger.
These are sold as a pair so you will receive 2 x split stern airbags
Make sure you have a bow air bag as well to ensure a safe rescue of your kayak