1.Threads made with dedicated tool, perfect accuracy and repeatability.2.Simple structure, premium material, not easy to deform or rust.3.Universal fitment for most vehicles with the M18*1.5 O2 sensor hole.4.Made of premium quality Metal material, high strength and durable.5.Easy installation, direct bolt-on, no modification needed.Name:Oxygen sensorSensor Type: PiezoelectricSensor Type: HolzerType: Non Heating TypeMeasuring Range: O2 SensorSize: Internal And External Thread Pitch M18 X 1.5 , 46mm LengthFitment:Universal Fit For M18*1.5Colour:silverMaterial:MetalPackage Contents:2 * Oxygen sensorOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.