Transcutaneous electrical nerve stimulation, also called TENS. A battery-driven unit put on the pores and skin provides electrical impulses towards the painful spot. Studies have proven combined results on whether TENS operates to deal with back pain. With its spiky textured floor, the RumbleRoller 12″ Compact Initial Textured Foam Roller https://rollga.com/collections/resistance-bands/products/resistance-band-set