DescriptionProduct FeaturesUsage: Flex the inside metal plate, it can reach temperature of 130°F immediatelyTo reuse, put the pack in boiling water to several minutes until allCrystals are dissolvedCharacteristic: Portable and reusable heatEasy to demonstratePVC 7.6″x11″(19.2cm x 28.8cm)Package : 12pcsLRR2
