Mr. Gasket has packed this tire gauge with almost every popular feature you could need along with two air chucks. Throw this in your bag just in case you need it on the road. The face glows in the dark so you can read your tire pressure at virtually any time.; 0-45 PSI Liquid filled 2" diameter gauge with protective rubber boot 18" long stainless steel braided hose with swivel at chuck end Two chucks included: 45° angled chuck and ball chuck Air bleeder valve that holds last pressure reading Glow in the dark for use at night