• High quality: Waterproof air vent valve made of high quality plastic material, with anti-aging, long service life, it is flexible and strong.
• The auto paddle board air vent valve features a spiral design, plug gears and better sealing.
• Suitable for stand-up paddleboards, surfboards, boats, etc.
• This waterproof air vent valve allows air and other gases to pass freely through the film, but prevents liquids from entering the housing.
• Products include 2 air vent valves easy to install and remove, simple to use, please view the size and weight picture of this product before buying, and make sure it is suitable for your use.