The Yeti Rambler 10/20 oz Tumbler Straw Lid is designed to pair perfectly with YETI's 20 oz Rambler Tumblers. This durable straw lid allows for easy sipping on-the-go with a wide straw opening and a molded-in stopper that keeps the straw securely in place. Constructed from crystal clear shatterproof material it's every bit as tough and long-lasting as the tumblers themselves. And like all Yeti products it's dishwasher safe for effortless cleaning.