Clean, easy, safer way to remove 70°F to 176°F oils and fluids through dipstick tube or other convenient openings. Great for car, tractor, boat and small aircraft engines. Also for industrial gear boxes, coolant and hydraulic systems. Rolls to job site. Easy to empty. You get oil level gauge and handy probe holder. Six metal and flexible probes included. Not for use with fuel, flammable or corrosive materials.