TerraTherm Toe Warmers adhesive – 5, 10 or 30 Pairs - Foot Warmer for 8 Hours of Extra Warm Feet – Toewarmers – Heat Pads for all types of shoesHEAT TIME: 8 hours of heat warmers with an average temperature of 39C. No electricity, boiling or additional warming necessary for the feet warmer. COMFORT: The ultra thin and comfortable toes warmers are barely noticeable and suitable for every shoe bed no matter if it's a ski boot, a winter boot, or an elegant lady's shoe. NATURAL INGREDIENTS: The foot warmers consist of iron powder, water, salt, activated carbon and vermiculite. Heat warmers are