The R+R memory Foam back cushion comes with a reusable hot/cold pack insert, providing you with ultimate support. Experience the soothing and healing comfort of the hot/cold pack and relieve the pain in your back. The foam contoured back cushion is great for everyday use and the hot/cold pack can be used in the microwave to heat and the freezer to cool. It comes with an adjustable strap to secure the cushion to a chair or seat