Centuries-old therapy from Asia gets an update with these wraps filled with 100% natural buckwheat seeds that offer hot and cold therapy to aching muscles in minutes. Simply heat the wraps in a microwave or chill them in a freezer, the buckwheat seeds will retain their temperature for 30 to 40 minutes. The seeds, which are traditional pillow filling in Asia, move to conform and drape naturally around the neck, hands, or feet for customized and focused therapy. An optional aromatherapy sachet produces a relaxing combination scent of lavender, sandalwood, and clary sage. Machine washable cover is made of plush poly rayon chenille. Blue. Designed for sore hands or as a relaxation treatment. One size fits most. 3" H x 5 1/2" W x 10" L. (1 3/4 lbs.)