Features: The Pencil Tire Pressure Gauge is as straightforward as gauges come. The no-frills design is simple and anyone can take pressure readings quickly. The battery-free design will continue to work under all conditions without needing to replace batteries or perform any additional maintenance. Easy to use and storage with lightweight and portable pen shape design. Pressure into the gas nozzle which can measure the tire pressure. Provides a quick, simple method to check tire pressure. The tire pressure gauge can read PSI, kPa, BAR, and its measurement ranges are 5-50 PSI. Specifications: Material: Stainless Steel Size: Approx.0.18x5.61in Measurement Range: 5-50PSI Package Includes: 1x Tire Presure Guage Pen note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.