Material: SiliconeSize: 10mm / 390.00"Colors: Pink, Dark Blue, Blue, Rose Red, Black, Khaki, Burgundy, Green, Purple, White1. Dust-proof Design: The straw cap adopts a classic heart design, which not only attracts attention but also has a dust-proof design to effectively protect the straw, making your drinking water more hygienic.2. Safe Material: The straw cap is made of high-quality silicone material, free of harmful substances, safe and reliable.3. Multi-functional: 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 small and lightweight, easy to carry with you, providing dust protection for your water bottle anytime and anywhere.5. Multiple color options: The straw cap provides a variety of color choices, suitable for 10mm diameter straws, meeting the personalized needs of different people, making your drinks more fashionable and fun.Package includes: 1/10*Heart-shaped straw dust cover