Jue-Fish Foot Warmer Patch, Portable Disposable Hot and Cold Warming Foot Patch

Our foot warmer strips contain iron powder, water, and activated carbon. They provide extremely long-lasting, safe, and effective heat; by warming your feet, your whole body warms up. They are very simple to use: first, clean your feet, then put on warm socks, peel off the backing, and stick them onto your socks. Your feet will slowly warm up, with heat lasting for 8 hours. Using them ensures you stay warm whenever you go out, so you are no longer cold in winter and always stay cozy.