Stan s NoTubes Universal+ Valves provide a versatile and secure fit with an alloy body and a reliable, airtight seal. The TAP CAP dust cap and lock nut with an O-ring prevent any loosening, while compatibility with tyre inserts makes this valve a dependable choice for modern cycling needs.Key Features and Benefits:Five airflow holes for optimal air and sealant flow: Four side holes and one bottom hole ensure consistent airflow, even with tyre inserts. This maximizes sealant coverage and keeps your ride smooth.Two-piece alloy base construction for durability: Built from black-anodized alloy, these valves resist wear and maintain a secure fit, providing reliable performance across various terrains.Secure TAP CAP dust cap prevents dirt ingress: The press-on TAP CAP blocks out dust and debris, maintaining valve cleanliness and enhancing longevity.Elliptical rubber stopper for modern rims: Shaped for a precise fit on contemporary rim shapes, ensuring an airtight seal that prevents leaks and