This is designed to lubricate heavy duty agricultural Equipment, earth moving machinery, motor vehicle etc. Spring loaded dise is placed inside the drum to make the positive pressure or easy pumping of grease. Easily portable mounted on wheels Quick and easily openable cover. Easy carry handle Working pressure up to-4000 psi Delivery rate-4.25 gram/stock. Lever operated pump mounted on cover of drum. 3/8" x2 meter delivery.