Nylon cuff w/1-tube bladder. Calibrated, nylon cuff. Calibrated, nylon cuff. Calibrated, nylon cuff. This fully calibrated blood pressure arm cuff is specially made for MABIS Sphygmomanometers. Made of strong nylon, the cuff will last for many years of reliable use. Standard size comfortably fits upper arm circumferences between 11 and 16 inches (27.9 to 41.7 cm). To ensure proper cuff size, measure your arm circumference midway between your shoulder and elbow joint.