Metal Tire Gauge with Zinc Alloy Body and Acrylic Lens, Available in Various Colors Metal Tire Gauge with Zinc Alloy Body and Acrylic Lens, Available in Various ColorsStandard Type: Zinc alloy body, color matte, with chrome-plated friction ring, acrylic lens, optional colors Calibrated: A: 20 to 100lbs B: 10 to 60lbs C: 10 to 150lbsScales selection: bar, kpa, kg/cm2, psi) Metal Tire Gauge