Diagnostix™ 760 Series Aneroid SphygmomanometerContemporary black enamel 300mmHg manometer provides day-in, day-out dependability exceeds industry standardsAdcuff™ nylon cuff with ADC's proprietary Size Guide™ marking system, prevents mis-cuffingChrome-plated brass air release valveLeatherette carrying case with durable nylon zipperNot made with natural rubber latex.