Nexcare reusable cold/hot pack for first aid pain relief. Use it cold from the freezer for pain, swelling, bruises or sprains. Use it warm from the microwave to soothe muscle aches and stiffness. Nexcare reusable cold/hot packs come with a protective cover for greater comfort and an attached elastic band to help hold the pack securely in place.
Safe and non-toxic gel
Warm it up in double boiling water to use it hot, and put it in the freezer to use it cold.
Propylene glycol gel and methylcellulose.