✓?UNEXPECTED ISSUES RESOLVED QUICKLY - Our blood pressure large cuff adult uk is well made, however In case of any issue, just let us know and we will resolve your problem as soon as possible. Incase you are not satisfied, we will send you a replacement or give you a full refund!. ✓?Universal design: The replacement large cuff is suitable for all Spinegear blood pressure monitors and Compatible with most models of arm electric blood pressures, arrange of 0-300mHg. Please check your sphygmomanometer to see if it's suitable. Easy installation and adjustable. ✓?Replaceable Connector: Spinegear upper arm cuff comes with a replaceable connector and the tube diameter is 5mm. If the connector is not the same as your previous one, you just need to take off the previous connector and install it into the new replacement hose. ✓?Adjustable comfortable cuff: Our Arm blood pressure cuff is designed with comfort in mind, Lightweight, easy to wear, made from a high-quality material. just slide it on your upper arm and connect to your Spinegear home use blood pressure machine. It'll auto inflate. ✓?Extra Large Size: Our XL blood pressure Cuff strap is an ideal replacement for spinegear CK A138, CK A139 cuffs. Work with Omron M2, Cazon, Kinetic BPM and any Digital blood pressure machine. Fits big or Larger Arm, it is individually tested to provide accurate result and also detects arrhythmia and pulse. The design of the Cuff is professional, Universal and can be used by the NHS or Medical practitioners.