Our Smiley Face Straw Topper is a fun and stylish addition to your favorite tumbler. We included 3 sizes, they are compatible with Stanley Cup straws or any drink with a straw. This happy straw charm is not only functional but also makes for a thoughtful and personalized gift. Elevate your favorite tumbler with this retro smiley face straw accessory. The large straw topper size is designed to fit the Stanley Cup 40oz tumbler straw.