Pneumatic mode and manual mode to fit all situation. The manual mode could be used by itself without any other equipments. The pneumatic mode turns the pump into a high-speed oil changer as long connect with air compressor. 6.5L vacuum fluid extractor comes with 5 different diameter tubes go to the bottom of oil pan. also 3.2 feet flex hose and 3 extra dipstick hoses to reach the bottom of the reservoir and suck up all fluid. Fast suction speed of 1.8L/min. The oil change pump extracts engine oil from a 4-cylinder car in a couple of minutes in pneumatic mode. Use this oil extractor pump, the engine oil and transmission fluid could be extracted directly by the dipstick tube, the sealing cap is attached to stop the liquid from spill during transportation. It's a perfect tool for working on vehicles anytime and anywhere. no need to lift up or crawl under the car to drain out the oil. NOTE:fluids with high volatility, high corrosion, high alkalinity and high temperature CANT be used. Name:6.5 Liter Pneumatic Fluid Extractor Pump Type:Oil Change & Fluid Change Tool Type:Vacuum Fluid Extractor Color: As Shown Material: Plastic Package Contents: 1* 6.5 Liter Pneumatic Fluid Extractor Pump Only the above package content, other products are not included. Note: Light reflection 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.