Grabber Adhesive Toe Warmers are the perfect everyday solution for cold toes. Thin with a unique rounded toe and adhesive backing, they are designed to function in the low oxygen environment of boots and shoes. Simply stick the Warmers to the outside of your sock, under or over your toes and enjoy more than 6 hours of warmth. All Grabber Warmers are designed for one-time, disposable use. Ultra thin toe warming patch with adhesiveLasts 6+ hoursAverage temperature when activated 100 degree Fahrenheit