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 a sponsorship or endorsement of, or associated with, the brand for which it is intended. Premium Material: Each straw replacement for Stanley tumbler 40oz made of the same food-grade plastic as the prototype, smooth edges, BPA-free, odorless, reusable, and durable, could be daily used for Stanley Quencher tumblers in peace of mind. Adjustable Length: The length of the replacement plastic straw is 11.81 inch, please measure the height of the stanley tumbler cup, cut your new replacement straw to fit your stanley cup according to the picture on detail page. Easy to Clean: The straws for stanley cups of 11.81 inch in length, 0.4 inch in diameter, the length of the cleaning brush is 12 inch, and the straw brush can be bent, you can be reused by simply cleaning it with the included cleaning brush. Notice: In order to avoid straw damage, please wash it by hand, do not put it in the dishwasher. Package Included: The package including 6 Pack Reusable Straws and 1Pack cleaning brush, Please replace the straws for your Stanley Water cup every 2 to 3 months to keep your cup brand new and your drinking water safer and healthier. Notes:Do not put in the dishwasher to clean, will have the risk of bending, it recommended the use of cleaning brush.