Inflation gun, chuck, and gauge are all combined in one easy to use unit Clip-on design enables hands-free chuck use Built-in relief valve for reducing pressure in over-inflated tires Includes flexible hose for easier use Gauge has range of 0-220 psi Specification: Color: Black & Silver Materia: Metal Measurement Range: 0-220psi ?0–16bar?1bar=100KPa? Heigth: about 24cm Diameter of pressure gauge: about 5.5 cm Hose length: about 35cm Outer diameter: about 7cm Package include: 1x Dial Tire Inflator Gauge