SPHYG ADULT DELUXE ORN (20/CS) McKesson Deluxe Pocket Aneroid Sphygmomanometer Extended scaleplate graduation marks reduce parallax for easier viewing from virtually any angle Adcuff„¢ nylon cuff with ADC€™s proprietary Size Guide„¢ marking system prevents mis-cuffing Adflow„¢ filter screen check and deflation valve reduce dust build-up Adflow„¢ chrome-plated brass air release valve for precise deflation control Leatherette carrying case with durable nylon zipper Meets or exceeds ANSI/AAMI/ISO 81060-1 Not Made with Natural Rubber Latex