Horseware Ireland Rambo Ionic Ankle Support Using specialised tourmaline infused patches to release negative ions, Rambo Ionic combines the benefits of compression and negative ion therapy. Tourmaline is a naturally occurring crystal. It is a source of negative ions much needed by our bodies to balance the positive ions we absorb every day from man-made chemicals. Increase circulation, stimulate your metabolism, increase oxygen delivery to cells and tissue, strengthen your immune system. Restore pH balance, reduce blood pressure, remove toxins from your body.