THE ORIGINAL Caylee's Creations Corn Bags are environmentally friendly, reusable, and long lasting! They are designed for everyday use and can be used HOT or COLD! Simply place the entire corn bag in the microwave for a few minutes to provide therapeutic heat or cool it down in your freezer to turn it into a cold pack! Reuse again and again! Easy to use directions included with every purchase -- contact for replacement directions. HOT: Microwave for 2-3 minutes (depending on microwave wattage). COLD: Place corn bag in freezer. Place in freezer bag before placing in freezer to keep corn bag dry. Have one on hand for each member of the family! Makes great memorable gifts!