Customized First Aid, Gel Tekbeads Hot Cold Pack - Reusable & Non-Toxic, Soothe your aches with this rectangular hot cold pack. Our packs are filled with vibrant color gel beads, and can be used as a hot or cold compress. Easy to use, this item moves seamlessly from freezer to microwave and can be used again and again. Each pack is filled with Tekbeads, a non-toxic, pliable blend of water and glycerin. Instructions for use are printed on the back of each hot cold pack. Great for medical Offices, health fairs, workplaces, home and more. ... #HCP100 $1.87/each.