I love these! They stay warm enough to keep your hands warm for at least 7 hours, usually more. Sometimes I stick one in each of my shoes to keep my feet warm. When my feet are warm, my entire body feels warmer. This box of 40 cuts the price of one pair to half of what you'd pay for a single pair in retail stores. Careful, though, if you're diabetic! Discuss them with your doctor and follow his advice.
- Would you recommend this to a friend? Yes