LGC12/20, Greenware Clear Straw Slotted Lid for 9, 12 & 20 oz. Greenware Clear Plastic Cup has a snap fit application which allows for this product to be closed tightly and be completely leak-resistant. This lid is crystal clear so that the beverage can be seen inside. Using this lid will reduce the chance of spills when taking your drink on the go. The flavor buttons on the lid can be pressed in for businesses and customers to specify whether the beverage is diet, cola, tea, or other. There is also a slot for a straw to be used. This item is packed 1000 per case.