Valve extender for 22" and up tires. Hub mount. Inflate and monitor your dually tires in seconds. Improves tire life, handling, driving safety and gas mileage. 3 year warranty - backed by TireMinder. Kit includes two straight braided steel valve extender 15" (38cm), two 90 degree braided steel valve extender 10.63" (27cm), four 90 degree brackets, four hexagonal locking nuts, four valve caps, four flat brackets, and eight rivets.