stick gauges digital gauges analog gauges product can expose you to chemicals including chromium of california to cause cancer and birth defects or other built-in light viair members save members save inflate a standard car tire in less than 3 minutes accurate pressure gauge and bright light for emergency fits most 4- and members save sth wheel or travel trailer mount the bulky spare tire beneath your trailer and out of the way angled and raised design makes it ideal for boat trailers either side for engine access on rear engine diesels or for ladder clearance