I was asked by my Doctor to start taking my BP at home. I bought this cuff and it is too small for the average arm. The part that reads pressure in supposed to wrap around the arm and this one does not. My Doctor looked at it and sent me the link to buy a bigger one. I have now ordered an adult large. If you weigh more than 110lb, this will not work correctly for you. I weigh 155lb and am 5ft 5in. Other than that the product seemed well made and value for money. The bag that comes with it smells terrible! Hopefully that will wear off with time.