Adhesive Toe Warmers Are The Perfect Solution For Cold Toes. Completely Unique, Very Thin With A 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 Your Toes, And Enjoy Over 6 Hours Of Warmth. All Heat Treat Warmers Are Designed For One-Time Disposable Usage. 2 Warmers Per Package.