Fit for Stanley Cup Straw: Compatible with Stanley Adventure Quencher Travel Tumbler 30oz/40oz Cornflower, Stanley cup 30oz/40oz, and 30oz/40oz Quencher with handle. Any mention of "Stanley" is for compatibility purposes only and the product is not sponsored by, endorsed by, or affiliated with the brand. Premium Material: Each straw replacement for Stanley tumbler 40oz is made of food-grade plastic, featuring smooth edges, BPA-free, odorless, reusable, and durable for daily use with peace of mind. Adjustable Length: The replacement plastic straw measures 11.81 inches in length. Please measure the height of your tumbler cup and cut the straw to fit according to the instructions on the detail page. Easy to Clean: The straws measure 11.81 inches in length and 0.4 inches in diameter. Includes a 12-inch cleaning brush that is bendable for thorough cleaning. Simply clean with the included brush for reuse. Notice: To prevent damage, hand wash only. Do not place in the dishwasher. Package Included: 6 reusable straws and 1 cleaning brush. Replace straws every 2 to 3 months to maintain hygiene and optimal performance. Note: Not dishwasher safe. Risk of bending. Recommended to clean with a brush.