Ensures your beverage stays fresh and free from contaminants. Cone shape straw hole allows to be used on most straws. Easily washable. Reusable and durable - great for repeated daily use. Features tethered design for attaching to straws. Great accessory for your straws. Made in USA. Made of EVA Material. *Straw not included, used in images for reference. Straw topper only included.