Activated by simply opening the packet, peel off the adhesive backing and stick to your socks on the toe end of your foot, it will keep both the toes and the balls of your foot nice and warm, they warm to 135⁰F / 57⁰C instantly, and stay warm for over 7 hours!
7+ hours of safe natural heatWarms to 135⁰F / 57⁰CAdhesive backing keeps in placeAir-activatedReady-to-use