Dynarex's Sphygmomanometers are an economical and practical choice, ensuring accuracy, durability and reliability, featuring a clear and easy-to-read 300mmHg gauge. Chrome-plated pressure gauge Nylon cuff with adjustable Velcro strip and thumb-activated air release valve Includes calibration key and artery indicator labels Comes with a zip-closed nylon carrying case Not made with natural rubber latex Size: Child