The First Years' popular nursery bottle warmer works with most bottle systems -- wide, narrow, angled, even disposables. It can also be used to warm baby food jars. Conveniently keeps bottles cold for up to eight hours, then warms a chilled bottle in minutes. The Nursery Bottle Warmer features an auto shut-off for added safety and a built-in night light to help makes late-night feedings a little easier. Bottles not included.