The Baseline heavy-duty dynamometer features the hydraulic system that ensures accurate readings from the industry accepted publishing's from Jamar and Baseline. The dynamometer is much lighter and easier to use than the spring push-pull dynamometers that are in common use today. Dial continuously shows instantaneous force and holds the maximum reading. This maximum reading should be manually recorded prior to resetting for the next test. Comes with 3 push pads (padded curved, padded straight, and 1 sq cm circular), 1 pull hooksnap-lock hook and carrying case..