Description: 【Quality Material】: This Inflatable Boat Air Valve is made of quality material, ensuring its sturdiness and longevity. It's lightweight yet sturdy, making it an ideal choice for your inflatable watercraft. 【Easy to Use】: The air valve is designed for easy installation and removal. It allows for quick inflation and deflation of your inflatable boat, kayak or surfboard, saving time and effort. 【Dimensions】: The top diameter of the base and the air valve are both 64mm while the bottom diameters are 40mm (base) and 38mm (air valve). 【Filter Screen Design】: Equipped with a filter screen at the bottom, this air valve effectively prevents foreign matter from entering your inflatable vessel, thus maintaining its performance and extending its lifespan. 【Wide Application】: Weighing only 87 grams, this Air Valve is suitable for most inflatable boats including rubber boats, surfboards, kayaks, canoes, dinghy rafts etc., making it a versatile addition to your boating accessories. Size Chart: Base: upper diameter 64mm, lower diameter 40mm Air valve: upper diameter 64mm, lower diameter 38mm Package Includes: 1 Inflatable Boat Air Valve(4 Pack) Note: Please allow slightly errors 1-2cm differences due to manual measurement.