Instant Cold Pack with Urea (Non-Toxic), 4 x 5, Case of 24

4517 Dynarex Instant Hot and Cold Packs are convenient, single-use heating and cooling aids designed to help provide rapid relief for minor injuries, aches, and pains. These flexible Packs easily conform to the body contours and are quickly activated by a single squeeze. Designed to provide quick relief of pain, swelling, and inflammation of minor injuries Constructed from flexible materials to conform to body contours Cold Packs: Cooling relief for minor sprains, burns, nosebleeds, and headaches Lightweight and compact for easy portability Not made with natural rubber latex