Features: You will get 1 piece air valve adapter to fit between the air pump air hose and the air valve, making it the perfect accessory to inflate your boat or kayak. Made of high-quality and stable nylon material, corrosion-resistant, very durable and not easy to be damaged or deformed, it can be used for a long time. Size 2.32*1.77*0.79in/5.9*4.5*2.0cm, small and portable, simple and practical additional device, can make your boat inflatable easier and more efficient. Add it to your gear today. Includes 2 rubber rings of different thickness but same diameter to ensure a perfect fit for your valve, just choose the most suitable ring and install it for easy and convenient use. The versatility makes it a very useful accessory for any inflatable boat. Whether you have a kayak or raft, this adapter is sure to fit and is a great little accessory for your boat or kayak. Specification: Material: Nylon Size:2.32*1.77*0.79in/5.9*4.5*2.0cm Color: black Applicable: kayaks, rubber boats, etc. Package Includes: 1pc Notes: Please allow slip errors due to manual measurement. Colors may vary slightly for different monitors.