Easily lift heavy loads weighing up to 8,000 lb. Great for use on the shop, farm, or job site Cleated non-slip lift cap, adjustable extension screw cap and replaceable pump cartridge for easy use Solid cast iron base for maximum stability of the bottle jack, base dimensions: 3-7/8 in. x 3-1/2 in. Hydraulic bypass on the bottle jack prevents ram over travel Lift height of bottle jack: 7.75 to 12.75 in. Weight: 6.7 lb. Lifting capacity of hydraulic bottle jack: 4 tons Reliable and portable design