Replacement Valve for Inflatable Kayak Air Boats, Inflatable Beds Description: Made of high-quality, three-in-one PVC plastic, this valve is safe, sturdy, corrosion-resistant, and durable. It offers high air safety protection, and the valve cap design ensures no air escapes during inflation. The valve is easy to inflate and deflate, featuring double-seal leak protection. With excellent air leakage performance, you can drift and paddle with confidence. It fits a hole approximately 1.7 inches in diameter and has a plug-in cap. Very easy to install and replace; you'll find it convenient after using it. Specification: Material: PVC Size: Diameter: 4.28/1.7 inches Color: Black Package Includes: 2-Piece Kayak Air Valve Caps Note: Please allow slight differences due to manual measurement. The color may vary slightly depending on your monitor. Thank you!