Versatile lids can be used with multiple cup sizes and hot or cold beverages. Compatible sizes include 12 oz. 14 oz. 16 oz. 20 oz. and 24 oz. foam cups. Tear-back tab and straw opening allow easy access to your beverage without having to remove the lid to drink. You can re-insert the tab to protect your coffee or hot tea from dust and other debris. Straw opening is made with X-shaped slits to shield your beverage until a straw is pushed through the slits. Raised buttons on the top of the lid help you identify which drink youre carrying. Lids are made of plastic.