Dynarex Instant Cold Packs with Urea provide immediate cooling relief to injured area, Easy to activate pack with one squeeze making access quick and convenient, Dynarex Instant Cold Packs are flexible and easily conforms to body contours, Nontoxic, Provides immediate cooling relief to injured area, Easy to activate with one squeeze making access quick and convenient, Flexible and conforms easily to body contours, Nontoxic, SKU: DNRX548