If you prefer using a blood pressure monitor like they do in hospitals and doctor's offices, this is the device for you. You manually inflate and deflate it yourself for professionally accurate readings using an aneroid gauge, air release valve, and inflation bulb, along with an included stethoscope. No worries about electronics or batteries. The detailed instructions show you how to take your blood pressure using this device. The arm cuff fits arms with a circumference of 13 to 17 inches. It also comes with a handy black zippered storage case. Features: Color: Black Material: Nylon+PVC Size: 22 x 12 x 1 cm This manual blood pressure monitor is similar to those used in doctor's offices and hospitals. The kit includes everything you need to start taking your blood pressure at home. It gives you professional accuracy without the need for electronics or batteries. The deluxe arm cuff fits arms with a circumference of 13 to 17 inches. Includes an aneroid gauge, air release valve, and inflation bulb with an included 22-inch stethoscope. Comes with a handy black zippered storage case and detailed instructions Packing list: 1 x Blood Pressure Cuff and Stethoscope Kit