The packaging includes 1 XL size BP cuff with 4.6mm connector and 3 replacement connectors, with dimensions of 5mm, 6mm, and 7mm respectively. Not suitable for BP742N, 785, HEM-7901T. This blood pressure cuff is equipped with a direct connector on the upper arm for connection. If the size of the connector does not match, the connector is detachable. You can replace it with the original or other 3 Yukiyi connectors.