This black transparent flat lid is made of food-grade PET material, available in two fitting diameters of 92mm and 98mm, compatible with a variety of disposable beverage cups. The top features a cross-shaped straw hole, allowing direct drinking with a straw. It snaps on securely to prevent spills during delivery, making it suitable for cold drinks such as milk tea, fruit tea, and coffee. It is a common accessory for takeout packaging at milk tea shops and coffee shops, and supports bulk ordering.