Comforting hands with moist, soothing warmth, NatraCureTM moist heat therapy mittens heat in the microwave for 25 to 30 seconds, offering up to 30 minutes of cozy, therapeutic relief. Tiny flax seeds inside target soothing warmth to aching hands, helping increase range of motion; polymer gel lining disperses moisturizing botanicals and essential oils to hydrate and nourish skin. Heath therapy gloves feature starbursts that turn red when hot and blue when cool; adjustable hook-and-loop straps provide custom fit. 95% polyester/5% spandex; spot clean. One size fits most. Imported.