Hot/cold packs for aches, pains, and sprains. Place in the freezer for 1-2 hours to use as a cold pack. Heat 60-90 seconds in the microwave for soothing heat. Each has a colorful removable cover that can be tossed into the washer and dryer for easy cleaning. Select from the designs below: pink cats and dogs, pink flowers and paisley, rainbow cats, waves, or rainbow frogs.