Jobst Armsleeve w Silicone Band 20 30 Medium Pessaries 0 ) * Proven durability MSHQ 1885 0 ) * Proven durability * The Onyx is proven tough enough to withstand a minimum of 50 drops * Automatic turn on and off for fast and easy spot checks * Portable Take the Nonin Onyx Vantage 9590 anywhere * Weighs less than two ounces * Made in USA what is there to hear underwater anyway Features Silicone Dot Band at Upper Arm * Convenient ready to wear * Ambidextrous * Flattened seam for extra comfort minimizes pressure over newly formed sensitive skin * Cool and light the open weave fabric allows the skin to breathe * Interim theraoy for the control and reduction of edema * Provides relief for arthritic symptons of the hand