Hydraulic Wrist Forearm Dynamometer Analog Dial Wheelchairs X Wide Power: AAA Batteries (not included) Gait Belts Power: AAA Batteries (not included) Size: 65*60*25mm 500LB DYNAMOTER (UNCLUDES DOOR KNOB GRIP AND PROTECTIVE CARRYING CASE) * Analog Dial Readout * Simply and accurately measures the strength of the wrist muscles during flexion extension abduction and adduction and the forearm muscles during supination and pronation * The Baseline© wrist forearm dynamometer features the time proven hydraulic system used in the industry accepted Baseline© and Jamar© hand dynamometers * For hand held use the dynamometer can accommodate the Baseline© single grip (12 0385) and dual grip (10041J) handle * Maximum reading remains until the unit is reset * The strength reading can be viewed as pounds or kilograms * Comes with portable carrying case * Made in the USA with a 1 year manufacturers warranty * CE certified *