Feature 1, Multifunctional with a safety hammer, LED light, seat belt cutter and tire pressure gauge. 2, The tire pressure gauge to ensure proper tire pressure, prevent puncture, to ensure road safety. 3, A Life-saving emergency hammer in case of need. 4, The emergency seat belt cutters are concealed in the bottom of the tool, please take care to use. 5, It has the barometric pressure measurement mode of four units, easy to read and use.Features: Multifunctional with a safety hammer, LED light, seat belt cutter and tire pressure gauge. The tire pressure gauge to ensure proper tire pressure, prevent puncture, to ensure road safety. A Life-saving emergency hammer in case of need. The emergency seat belt cutters are concealed in the bottom of the tool, please take care to use. It has the barometric pressure measurement mode of four units, easy to read and use. Powered by "AAA" battery, which can be replaced conveniently. Specification: Condition: 100% Brand New Material: ABS Plastic Color: As Picture Shown Size: As Picture Shown Battery: 2 * "AAA" battery (Not Included) Units: kg/cm2, bar, psi, kpa Package Weight: Approx. 164g/5.8oz Package List: 1 * Tire Pressure Gauge