UniHeat 72+ Hour Multi-Purpose Jumbo Shipping Warmer

Designed for reliable and steady heat release for 72 hours
Simple to use and deliver optimal results with color indicator on the warmer
Excellent for shipping live insects, reptiles, tropical fish, flowers, etc.
Provides an average warmer surface temperature of 100 degrees Fahrenheit (38C)
Environmentally Safe Uniheat shipping warmers are the first warmers designed especially for small pets, tropical plants and other temperature sensitive products. Simply remove the outer packaging and expose the warmer to air to activate. Preheating before useage is not necessary. Contents: Iron powder, water, activated carbon, vermiculite, wood powder and salt. More »