for : This straw cap is specially designed for 0.4inch/10mm in diameter and straw design of the same size. Please confirm the size carefully before purchasing. These straw covers can prevent dust or animal hair from falling into the straw, and at the same time make your cup look more fashionable and cute, bringing a good mood. Easy to install and remove. High-quality materials: Made of food-grade silicone, , making your use and more hygienic. Small, portable and practical. It is not only suitable for daily drinking water use , but also can be used in travel, business, camping, parties, and it is also a good gift and prize. A of cute , you can choose according to your personal preferences and mood, and you can also exchange them with your friends. size: 10mm in diameter Material: Silica gel colour: White Package Contents: 8 x straw lid Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.