Check the listing for details. New Microwavable Therapeutic Wolf Corn Bag / Heating Pad Pack Hot - Sale! Wolf 3. Color: Brown, Condition: New. Listed at 19.50 USD. WolvesMicrowaveable Corn Filled Heat or Cold PackCotton FabricFilled with Whole CornWolf pattern #3 Soothing therapeutic healing heat - gentle, relaxing hot therapy when microwaved.Soothes aching musclesimproves circulationRelieves painCalmingRelaxingRejuvenatesRelieves headachesHelps with arthritisRelieves muscle spasmsInstructions:Microwave on high setting 2 to 3 minutes Use carefully – make sure it’s not too hot before placing against skin.Will stay warm for up to 45 minutes.To use as cold therapy, place pack in the freezer in a zip lock bag.Your pack will be packaged in a zip lock bag with an instruction card - ready for gift giving. Notes:Microwave ovens vary, so start heating your bag at two minutes and test it to see if it is hot enough for your preference. If not, heat for additional 15 second increments until you know how long your particular microwave oven takes for your comfort. Avoid overheating as that might burn the corn. For cold therapy, place the pack in a zip lock bag and place it in the freezer. The bags are made from cotton and filled with whole corn. The corn is loosely packed inside the bag - with each bag containing approximately 2.5-3 pounds of corn. This flexibility will allow you to wrap the bag around whatever area of the body you are using it - it is especially nice to use on your neck, back, knees, ankles, etc. This is not intended as medical advice. Please check with your medical provider as to the the advisability of using heat in your particular situation.