CooperSurgical WarmGel Adult Heating Pack (Different Sizes) Sizes: CooperSurgical 20419 Medium 6x6, Box of 40CooperSurgical 20420 Large 7x9, Box of 24 All WarmGel products use a patented activation disc to produce quick, consistent, and reliable heat, nesting the infant to reduce the chance of hypothermia and vibration. Based on a 24°C/75°F start temperature, the mattress reaches a peak temperature of 40°C/104°F in less than 60 seconds. Latex and PVC free! Features and benefits: Better heat...