Features: When the windpipe is connected, the negative pressure in the kettle will be generated and the waste oil will be sucked out. Add new oil at the same time.Keep the air intake pressure of the air pump at 6-8bar.Easy to use.It saves you the trouble of pushing the brake pedal back and forth. Easy to operate, one person can finish brake fluid replacing work. Universally works for cars,motorcycle. Say goodbye to the job of two persons; say goodbye to dirty oil stained on floor; say goodbye to the traditional tiring and boring oil replacement method Specification: Size:As the picture Material: Plastic + Metal Packaging Includes: option1 1 X Oil Change Tool option2 2 X Oil Cups NOTES: 1. Due to different display and lighting effects, the actual color of the item may be slightly different from the color shown on the picture. 2. Due to manual measurement, please allow a little measurement deviation. 3. If you have any problem with the product received or your package is missing, please contact us in time, we will reply within 24 hours.