Durable PE: Suitable for transferring chemicals such as concentrated acids and bases to solvents (methanol, biodiesel, isopropanol, gasoline, engine oil). Strong Seal: Safe for transporting fresh water from one tank to another tank. Easy to Use: Insert the oil inlet tube into the bottom of the oil tank, insert the oil drain tube into the prepared oil tank, squeeze the rubber ball 5-10 times, and the liquid will flow out automatically. The oil dispensing speed is fast and easy to use. Wide Application: Oil pump Suitable for cars, engines, lawn mowers, boats, ships, helicopters, boats, motorcycles, etc., but also for aquariums, swimming pools, home breweries, etc. Upgrade Pack: 2-piece oil pump combination, which can be freely exchanged for daily needs.