Features: brand new and high quality Applicable to various models: for cars, motorcycles, racing for cars, etc, check engine light repair. It is not easy to rust, has high hardness and is not easy to deform. The surface treatment has no burrs and is bright overall. Easy to disassemble and install. Built-in M18x1.5 catalytic converter, helps to get rid of checking engine lights. Built in micro catalytic converter, avoid checking engine lights after modifing exhaustor or removing catalytic converter. Specifications: Material:304 Stainless Steel Size:Approx.1.6x0.8x5.8x2.2x2.5cm/0.63x0.31x2.28x0.87x0.98inches Color:Silver 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 difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Car Oxygen Sensor Extender