Features: Gray food grade silicone straw hole grommets stoppers replacements odorless safe stoppers for yei lids. Made of food grade silicone material, odorless, non-toxic, easy to aging and break, completely safe to use and durable for long time. The package comes with 10 pieces of silicone straw hole stopper, single part is convenient to replace your lost or damage one. Easy to install and use. Attached plug is easy to close the straw hole off to prevent spilling and keep your drink fresher for longer. Suitable for yei lids which have straw hole. After receiving, soak it in warm salt water. Specification: Material: Silicone Size: Outer Dia.: 1.5cm/0.6 inch Inner Dia.: 0.9cm/0.36 inch Color: Gray Suitable for: For Ozark Trail Rtic Yei Tumber Cup Package contains: 10pcs or 20pcs Bottle Straw Plugs (bottle not included) Note: Please allow slight dimension difference due to different manual measurement. Please note that slight color difference should be acceptable due to the light and screen.