Easy to use. Easy to read. Professional quality. Features: 1) Available in 8 vibrant colors 2) With metal head and 4-side plastic bars 3) Calibrared:10-50 lbs or 10-100 lbs 4) Scales selection (bar,kPa,kg/cm2,psi) Inner packing: 50pcs/box Outer packing: 500pcs/ctn Dimensions: 48 x 28 x 52cm N.W.: 14.5kg G.W.: 16kg Auto Pen Type Tire Gauge,pencil type tire gauge;tire gauge tyre gauge,tire pressure gauge