Made in USA with 100% USA parts Closed Height 12 3/8 ” Extended Height 18 1/4 ” Base OD 2 1/2 ” U.S. JACK POWER RAMS Special seamless steel tubing with smoother, harder surface. Long-wearing polyurethane seals. Includes ram cap and ram half of quick coupler. Positive ram travel stops. Spring-loaded retraction mechanism. US Jack supplies our U.S. Military, Boeing, Lockheed-Martin, Oshkosh Truck and Snap-On.