Gertie the Gecko is a pattern from Funky Friends Factory. Gertie can be made as a plush, a beany, a heat pack (microwave safe), or a cold pack! The heat packs and beanies can be made with rice or beans. The cold packs are made with beans, smooth fabric good for conducting cold, and are NOT microwave safe. In fact, the only one that is microwave safe is the heat pack gecko. Just specify which type of gecko you want.