These THAW disposable toe heaters come packaged as individual sealed warmers inside a box of 40, providing convenient single-use heat for toes. To use, open a sealed pouch and place the warmer inside your sock or shoe near the toe area; exposure to air typically activates the heating element. They are suitable for outdoor activities, commuting, sports, and jobs in cold environments. After use, dispose of the unit responsibly. Follow any safety instructions on the product packaging to avoid prolonged direct skin contact and to ensure proper disposal.