This is a great invention! The cuff is enclosed in a plastice clam shell container and easily fits into a purse or backpack, making it easy to take along anywhere. I have a husband with uncontrolled blood pressure/ heart rate problems and now I can check him any time I need to and it is very easy to do. Just place the cuff on the underside of your wrist, wrap the velco around it and push a buttom. You get a quick accurate reading of blood pressure and pulse. There is a memory feature so that you can go back and check your previous readings. Love it!