The TireMinder Braided Steel Valve Extender helps you inflate and monitor your dually tires in seconds.• 16"-19.5" tire size• TPMS compatible• Mounts to wheel hub• Inflate and monitor your dually tires in seconds• Improves tire life, handling, driving safety, and gas mileage• Schrader-type valve stem• Made of braided steel Fits 16""-19.5"" tires TPMS compatible Mounts to wheel hub | TireMinder 16"-19.5" Braided Steel Valve Extender Kit for Dually Wheels, Hub-Mounted, 4-Pack