PolyMem® PolyTube™ Tube Site Dressing, 3½ x 3½ Inch, 1 Box of 15 Knee The Blue Jay Elite Healthcare MSHQ 1594XL The Blue Jay Elite Healthcare Products PERFECT MEASURE WRIST BLOOD PRESSURE MONITOR is lightweight portable convenient accurate and simple to use * Users can easily check their blood pressure with this handy wrist blood pressure * Accurate results detected by oscillograph * One touch function * Irregular Heartbeat Detection * 90 memory recall with date and time stamp * Automatically powers off to help extend battery life * LCD screen display * WHO (World Health Organization) BP classification indicator * Average of the 3 most recent measurements * Cuff fits wrists 6 Low resistance to flow Pre cut to enhance patient comfort and help clinicians easily apply the dressing to the tube site 3 1 2 x 3 1 2 inches