This kit combines a sphygmomanometer and a dual head stethoscope. Sphygmomanometers feature a calibrated nylon cuff with aneroid gauge complete in an oversized matching nylon carrying case. Cuff fits upper arms from 9-1/2"" - 14"" in circumference. Units are backed by a fifteen year calibration warranty. Stethoscopes are made of die cast zinc alloy chrome-plated chestpiece and chrome-plated brass binaural. Overall length is 30"". This product contains rubber latex which may cause allergic reactions in some individuals.