Smartly designed to facilitate easy, clear readings: Paramed blood pressure cuff comes in universal size - 5.3-7.6" and features a large LCD display to allow for the most accurate readings Do not take measurements after bathing, drinking alcohol, smoking, exercising, or eating. Empty your bladder before measurement. Sit in a chair with your back supported. Do not use devices that emit electromagnetic fields near the unit. Take at least 2 minutes apart, before repeated measurements Take your blood pressure kit anywhere: comes with a durable carrying case in the set. Manual Instruction. Quick Start Guide, 2 AAA batteries included To get accurate measurements, follow the directions in the instructions, quick start guide, and product description page carefully