This gauge for blood pressure units is legible and easy to get a quick reading of. It can be attached quickly and with minimal difficulty. Features: McKesson Aneroid Gauge Black body, white face with black numbers. For use with Standard Aneroid Sphygmomanometers (01-775 Series). 300mmHg, no-pin stop. Individually tested to conform to ANSI SP9 standards. Not Made With Natural Rubber Latex.