EZ Heat™ Instant Reusable Hand Warmer

Vividly demonstrate endothermic and exothermic heat of solution!

• Rechargeable for repeated use Portable Safe, instant heat on command

EZ Heat™ hand warmers provide 55 °C (130 °F) of heat in seconds. Supersaturated food-grade sodium acetate is shelf stable until activated by the metal button inside the tough plastic pouch. After the reaction the heat pack can be recharged by heating in boiling water.