1、SAFE AND HYGIENIC: Water bottle twist cover cap with straw is designed with a built in dust proof cover to prevent dust and contamination. 2、EASY TRANSITION: The straw design is perfect for babies and children transitioning from bottle feeding to independent drinking. It allows them to easily sip water on their own. 3、STORAGE COMPARTMENT: Bottle mouth conversion cap comes with a built in straw storage compartment, allowing you to conveniently carry and store the straw when not in use. 4、UNIVERSAL FIT: Water bottle twist cover cap with straw is a versatile accessory that can fit most water bottles. It provides a spill proof and safe drinking solution for various bottle sizes and brands. 5、DURABLE MATERIAL: Made from safe material, this cap is durable and long lasting. It can withstand daily use and is easy to clean. Enjoy a worry free drinking experience for your little ones. Item Type: Water Bottle Twist Cover Cap with Straw Material: ABS 1 x Straw 1 x Storage Compartment