This valve lid is ideal for air beds, inflatable mattresses, and swimming rings, providing a secure fit. Whether you're inflating items at home or on a yacht, this valve lid ensures inflation, keeping your inflatables ready for use.Features-Color:Transparent-Material:PVC-Size:10.00X3.80X1.80 cm/3.93X1.49X0.71in-Size: large valve plug bottom diameter: 14.5mm; middle valve plug diameter: 17.3mm, small valve cap diameter: 12.4mm-Stable valve structure: the valve cap features a stable structure, making it ideal for use with inflatable mattresses or pillows, ensuring a secure fit-Practical design: a must have for inflatable yacht, this practical design ensures you are prepared for any unexpected incidents with your inflatable mattress accessories-Useful: Its versatility makes it ideal for use in various settings, from home to yacht. Keep your inflatables items ready for use with this essential valve lid-made of pvc: made with stable materials, this valve is ideal for use with mattresses and pillows, providing performance- valve cap: this product offers a valve cap that is built to last, ensuring your inflatable items remain securely sealedPackage list: 5 x valve cover