Insulated tumbler with lid and straw. Shells Blue Insulated 18oz Plastic Tumbler with Lid & Straw - 25263B This 18 oz. heavy plastic insulated tumbler has a sea shells design in blue and aqua green and comes with a Blue lid and staw. Measures approx 6.3" tall by 4" in diameter. Eco-friendly alternative to disposable. Insulated wall keeps beverages cold. We recommend hand washing. BPA free.