Contemporary black enamel 300mmhg manometer provides day-in, day-out dependability exceeds industry standards, adcuff nylon cuff with adcs proprietary size guide marking system, prevents mis-cuffing, chrome-plated brass air release valve, leatherette carrying case with durable nylon zipper, not made with natural rubber latex, assembled, inspected, and packaged in the U,S,A, from foreign components, meets or exceeds ANSI/AAMI/ISO 81060-1.