Hydraulic Hand Held Dynamometer Tub Lifts M 4 Mobile Heating Unit with 14272 M 4 Mobile Heating Unit with 8 Oversize & 8 Cervical HotPacs * 110~120 V 50 60 Hz * High quality stainless steel * Thermostatically controlled temperature * 3 (8 cm) swivel type rubber casters for silent friction free movement * Easy maintenance * Simple to fill and drain * No plumbing required * Uses 110 current 12 75 mm Rear Braked Casters Yields accurate grip strength readings without the subject being able to feel the handle move * Features an adjustable handle with five positions to accommodate to any hand size * The indicator remains at the subject's maximum reading unit until it is reset * Registers up to 200 pounds and reads in pounds and kilograms * Includes a carrying case *