LIQUID LOCK Complete your Mason with our 18/8 stainless steel, one of a kind lid featuring our patented food grade silicone grommet which reduces spilling, clinking, or dripping. FEATURES: Patented silicone grommet Universal sizes - fits any regular mouth mason jar No more rust Looking for a wide mouth lid? Click here. Accommodates Skinny, Classic, and Wide straws only (sorry, no Boba) Care Instructions For your lid: Remove silicone ring inside the rim, wash separately to ensure that you remove all food particles & dry immediately after washing. Do not remove the grommet. Want to learn more about caring for your products? View the care section in our FAQ.