The single-hand operated MDF® Medic Palm™ Aneroid Sphygmomanometer features an extra-large faceplate and shock-absorbing gauge guard. With inflation bulb and valve integrated into the gauge, this lightweight super-duty model combines performance, efficiency, and portability. Stress-tested over 3,000 times and calibrated 5 times before final assembly, it is one of the most durable, accurate, and dependable blood pressure measurement devices on the market.