It is a tire pressure pen with a 360 rotating scale on 4 sides for precise measurement and easy reading. You can measure tire pressure anytime and anywhere with this easy to use tire pressure pen that requires no batteries. This tire pressure pen is made of high-quality stainless steel, aluminum, plastic material. The length is 14.6cm, the width is 1.6cm and the height is 1.4cm. This tire pressure pen is suitable for workshop. Item Name: Tire Pressure Pen Material: Stainless Steel, Aluminum, Plastic Features: Fall-resistant, Electroplated Surface, Heat-resistant Range: 10-100 PSI, 70-700 KPA, 0.7-7 BAR Size Details: L: 14.6cm/5.75", W: 1.6cm/0.63", H: 1.4cm/0.55"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Tire Pressure Pen