By supplying hydraulic fluid under pressure while making a direct physical effort, hydraulic pumps that are operated by hand transform mechanical energy into hydraulic energy. Special design with an aluminum alloy construction. The lightweight hydraulic pump is ideal for easy portability and maneuvering. Vtech Hydraulic is the world's leading and most reputable hydraulic equipment reseller, distributor, and supplier. Visit https://www.vtechhydraulic.com/hydraulic-hand-pumps.php to learn more about the Hand Pump.