Material:stainless steel + rubber Model Number:Tire Pressure Gauge Origin:Mainland China Specification: Product Specifications Accuracy:+/-2 PSI,Measuring Range:0~100 PSI Colour:Black Material:stainless steel + rubber Size:11.5*6*2cm(4.53*2.36*0.79in) Feature: 1.Durable construction,rubber jacket and copper head,High-quality precision movement,accurate measurement.Heavy duty steel & brass body feels solid in the hand and is built to last rugged rubber protector,providing extra protection from accidental drops and everyday storage. 2.Compact size features an easy-to-read 1.5 inch dial (psi),suitable for most cars,trucks,SUVs,motorcycles,bikes,spare tires,or RVs.This top-rated,professional tire monitoring system is easy to use and is reliable in all weather conditions.A perfect accessory for your car,motorcycle,truck,bike,SUV,RV or ATV - it will not let you down. 3.Make sure the tire is cold before you start.Press the 45 Degree extended head against your tire's nozzle till the pointer stops moving.Hold the tire pressure gauge at eye level and get the reading of the pressure.Check the manufacturer's recommended PSI (normally it can be found on the side of the tire) and make sure the pressure isn't too low or too high.Press the reset button on the gauge and put the nozzle cap back on the tire's nozzle when you finish measuring. Package Contents: 1*tire pressure gauge Note: Please allow 1-2cm errors due to manual measurement,Please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.