Use with sphygmomanometer or digital blood pressure monitor, testing blood pressure. Material: polyester with tpu bladder, latex free Sizes: small adult: lc 18-26cm, adult: lc 25-35cm, large adult: lc 35-44cm. Single tube or double tubes, tube length 50cm. Oem offered Standard packing detail: 1pcs/bag, 170pcs one carton, carton dimentions: 55cm*45cm*30cm