This aneroid handheld sphygmomanometer is precision-crafted and exceeds industry standards. The nylon cuff includes a clear and visible marking system to ensure correct application. It features a bladder and bulb with a dial display. The McKesson sphygmomanometer valve has filter screens to prevent dust development. The air-release valve acts quickly to rapidly deflate the cuff, the circumference range is 33 to 50 cm. The adult large aneroid sphygmomanometer with cuff does not contain natural rubber latex.