1、Oxygen sensor spacers move oxygen sensors away from direct contact with exhaust flow. 2、You will get one 90 degree spacer and one straight spacer. 3、Spacer design to fit most vehicles with the M18 × 1.5 sensor hole. 4、Straight bolt-on, no modification needed(Please measure your car to ensure enough clearance available). 5、High-quality material and workmanship not like the other cheap ones. Features: Oxygen sensor spacers move oxygen sensors away from direct contact with exhaust flow. You will get one 90 degree spacer and one straight spacer. Spacer design to fit most vehicle with the M18 × 1.5 sensor hole. Straight bolt-on, no modification needed(Please measure your car to ensure enough clearance available). High quality material and workmanship not like the other cheap ones. Specifications: Color: Silver Size: 11*7*2.5cm/4*2.8*1in Weight: 351g/0.77Ib Material: Steel with Zinc coating Manufacturer Part Number: 1320-O2-EXTENDER Package List: 1 × Oxygen Sensor Angled Extender Spacer 1 × Oxygen Sensor Angled Extender Spacer