A Wheat Bag is also known as a therapy bag, hot pack, cold pack, etc. Made with cotton flannel and Canadian prairie wheat, you can heat up in the microwave or put in the freezer and use as a cold pack; apply to wherever therapy is needed (reduce swelling, cramps, sore neck, etc.). Features: -Removable washable cover -Inside bag sewn in 3 sections to give maximum hot/cold therapy -3 lbs in weight Instructions for hot/cold use are on the back of the packaging the Wheat Bag is sold in.