For Use Alone Or As A Refill * Stays Flexible When Fully Frozen To Mold Around Painful Area * Quickly Reaches Freezing Temperature * Maintains Low Temperature Longer For Optimum Therapeutic Benefit * Non-toxic Fill Enclosed In Latex-free Vinyl * Durable Enough To Be Used Several Times A Day * Ergonomic Designs For Specific Areas Such As The Neck Shoulder Back Or Wrist *