Color Change Straws 5pk - Holiday Party Gift Set Bundle includes St Patricks, Easter, July 4th, Valentines, and Christmas Color Changing Straws Cool Change Reusable Straws That Change Color When Ice Cold Fun Idea for Classroom Parties or Gifts - Fun For Kids and Grownups alike Medium Weight for Ice Cold Drinks, Milkshakes, and Smoothies - Dishwasher Safe (Top Rack Only) Please note: Color change varies with temperature (See full description below)