BPM-110 digital blood pressure monitoring device facilities blood pressure regulation at home. It is easy to use and displays precise readings for blood pressure and heart rate. The cuff can be easily worn on the arms without any external assistance. Just slide it up your arm and tighten it using the Velcro. It is good to use for arm circumference of 9 to 13 inches. Once worn on the arm, it auto inflates to the desired level on the click of the start button.