Translucent Lid Features A Lift N' Lock Design For Simple Access To Your Beverages. Or, Use The Convenient Straw Slot To Easily Drink Cold Beverages. Sturdy Plastic Material Provides A Secure Seal To Prevent Spills And Messes. Lid Is Designed For Use With Dart 10J12, 12J12 And 14J12 Cups (Sold Separately).