Size - Small Size for Kids: 17-22cm - Large Size for Adult: 22-52cm Notes 1. Large Cuff Strap only, Blood Pressure Monitor not included. 2. 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.) 3. Compatible with most models of arm electric arm blood pressures, arrange of 0-300mHG. How to Use 1. Keep the lower edge of the cuff 2-3CM 2. The air tube is on the inside of your arm and aligned with your middle finger. 3. The cuff should be placed on your arm at the same level as your heart. 4. Keep a certain space between the cuff and arm.Ensure that one finger can be inserted.

PERFECT CHOICE - No need to buy a new monitors set, just order this cuff for your old monitors, it will work well and save money. If you have any problem about the product, just contact us. COMPATIBLE - Compatible with most models of arm electric arm blood pressures, arrange of 0-300mHg. Please check your sphygmomanometer to see it it's suitable. REPLACEABLE CONNECTOR - ISFORU 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. EASY TO USE - Easy to use, slide it on your upper arm and connect to your home use blood pressure machine and run it. EXTRA LARGE SIZE - ISFORU blood pressure monitor cuff suit adult arm 22-52cm in circumference. The replacement cuff is easy to self-adjust to improve accuracy.