1.) Loosely, Fold the heat pack back and forth along the red line several times to activate the heat pack.
2.) Lay the heat pack on top of 2 – Styrofoam ‘Heat Shields’ approximately ¼” in thickness and almost the width of the box used.
3.) Place the red-line facing downward in the center of the gap between the 2 heat shields.
4.) Completed, ready to place the Styrofoam liner lid on top of the heat pack inside box, directly on top of heat pack.