This professional quality sphygmomanometer is similar to those used in doctor's offices and hospitals. It comes with all you need to start taking your blood pressure without the need for electricity or batteries. It features a calibrated blue nylon cuff, the aneroid gauge shows large easy-to-read numbers which perfect for those with poor vision. It's compact size and manual design make it great for home use as well. This sphygmomanometer also comes with a convenient deluxe zippered carrying case so you can always have it ready on the go. MABIS Aneroid Sphygmomanometer Manual Blood Pressure Monitor with Calibrated Nylon Thigh Cuff, Adult Size, Blue