The very best martinis lose their appeal unless served frosty and refreshingly cold. But no fear: the Martini FREEZE™ is here to rescue your cocktail, whether shaken or stirred, from a lukewarm, watery death. Just stash your cup in the freezer to chill the built-in active cooling gel and keep your martini chilled for 2 hours. Set of 2 9 oz. cooling cups. Hand wash.