HEEL WARMER, W/TAPE INF (25/BX4BX/CS) Consistent, controlled temperature of 104F degrees reduces the risk of burns Contents are certified food grade and nontoxic The gentle warmth of the market-leading Infant Heel? warmer helps increase an infant's blood flow so caregivers can get a quality heel stick the first time Just squeeze the warmer to activate, and it's ready to use No cooling off period is required No edges or metal materials to harm caregiver or patient Contains Sodium Thiosulfate Pentahydrate With Tape