Therma-Kool 6 in. x 10 in. Reusable Cold and Hot Pack – Reusable hot or cold gel compress. Microwaveable. Always stays flexible.ES: Therma-Kool 6 in. x 10 in. Paquetes Reusables Frio o Caliente922-10693 ACTIVE INGREDIENTS: None922-10693 INACTIVE INGREDIENTS: None3 per quarter