Material: silicone Size: 10mm / 390.00" Colors: red, yellow, black, orange, blue, purple, pink, white, rose red,Beige, green 1. Dust-proof design: The straw cap adopts a unique butterfly design, not only attracting attention but also having a dust-proof design, effectively protecting the straw and making drinking water more hygienic. 2. Material safety: The straw cap is made of high-quality silicone material, safe and healthy for you to use with confidence. 3. Multifunctional: The straw cap can not only be used to decorate your favorite water bottle, but also effectively prevent dust and reduce dust coverage. 4. Lightweight and portable: The straw cap is compact and lightweight, easy to carry with you, providing dust protection for your water bottle anytime, anywhere. 5. Multiple colors to choose from: The straw cap offers a variety of color options, suitable for straws with a diameter of 10mm, meeting the personalized needs of different people, making your drink more stylish and fun. Package includes: 1* Butterfly Straw Cap