WA Tycos Silver Ring Hand Aneroid Blood Pressure Traction Units core strengthening and stability Ships From:FL, USA core strengthening and stability DIGITAL (LCD) READOUT * 250 lb * The heavy duty dynamometer features the hydraulic system that is used in the industry accepted Baseline© and Jamar© hand dynamometers and pinch gauges * Hydraulic system ensures accurate readings * The dynamometer is much lighter (1 Silver Ring Trigger Release Hand Aneroid Sphygmomanometer * Unit with Adult Cuff * Innovative trigger release air valve to ensure smooth even deflation all with the press of a button * Latex free for safety * One piece cuff is more durable and easier to use * Thermally treated diaphragm maintains calibration * Zinc die cast housing for mechanical stability * Double shell ABS housing for durability * Ergonomic design works well in right or left hand * Luer lock for easy cuff size changes * Thermally treated diaphragm maintains calibration * Polyester zipper case *