REPLACEMENT TIPS - If the size of the connector does not match, and the connector is removable, you can replace it with the original connectorDURABLE MATERIAL - Extra large blood pressure cuff using nylon cuff fabric, TPU airbag non-toxic and tasteless. Nylon soft hook velcro does not grab the hairAFTER-SALE SERVICE - provides 1 year-warranty for extra large blood pressure cuff, free-refund andamp replacement. If you have any quality concerns or other problems, please feel free to contact us by emailCOMPATIBLE DESIGN - Blood pressure cuff upper arm comes with 7 connectors. Replacement xxxl cuff is suitable for most brands blood pressure monitorADJUSTABLE CUFF - Blood pressure monitor cuff suit adult arm 9-26 (22-66cm) in circumference. The replacement cuff is a breeze to independently calibrate in order to enhance precisionPACKAGE INCLUDING - XXX-large blood pressure cuff, 4mm connector, 4.6mm connector, 5mm connector, 6mm connector, 7mm connector, 7.2mm connector, 11.3mm connector, quick guide manual