The Hand-held aneroid sphygmomanometer can be used single handed due to the ball mounted directly onto the gauge. This device comes with an appealing price and is reliable and a must have device for any medical arsenal. The Hand-held aneroid sphygmomanometer is feature rich and includes a precision gauge, measuring capabilities with one tube, floating zero, satin aluminum casing, zipper pouch, latex free tubes, bulbs, and chambers, weighs just 400 grams, anti allergenic nylon, corrosion free concept, 45mm internal dial, 0-300 mm scale and single packaging in cardboard box.