The Therapist's Choice Blue Vinyl Cold pack helps reduce pain by blocking or slowing down the transmission of pain in the affected area. It ensures effective cold therapy regardless of body area or shape, remains pliable throughout treatment. It delivers up to 30 minutes of soothing relief from acute pain, swelling and fever. Therapist's Choice Blue Vinyl Cold Packs are latex free and filled with non-toxic gel that remains pliable throughout treatment. Compare to Chattanooga Colpac and Save