<p>The Duo copper bracelet bangle combines the traditional properties of copper with a stylish,&nbsp;timeless unisex design.&nbsp;Contains two powerful Central Reverse Polarity magnets.&nbsp;</p> <p>Available in two sizes:</p> Medium fits 150-190mm wrist circumference<br> Large fits 180-215mm wrist circumference <p>Bioflow products should not be worn by anyone fitted with a heart pacemaker or other implant that could be affected by a strong magnetic field.</p> <p>These bracelets&nbsp;are water resistant and will withstand being out in the rain or washing your hands. They are not suitable for any kind of prolonged water exposure or submersion (e.g. showering, bathing or swimming). As long as this guidance is followed, Bioflow magnets are guaranteed for life.</p> <p>PLEASE NOTE: The Duo is not plated therefore this product may produce a naturally occurring green or black deposit on the skin. This can be easily washed off the skin with soap and water.</p>