This uber-versatile lid allows you to pour, store, shake, mix, or carry any liquid or pourable dry goods (like sugar, salt, grains, seeds, nuts, small candies, and more). It's leak-proof and airtight, ensuring no mess. Updated V2 Information Based on customer feedback we’ve created an improved version with the following enhancements: - Better Threading: Fits a wider variety of Mason jars more reliably. - Thicker, Platinum-Cured Silicone Sealing Ring: LFGB-certified silicone rings that won't bunch up, are easier to clean, harder to lose, and compatible with many of our other lids. - High-Quality Mold: The flip cap is now easier to open and close, stays in place while pouring, and remains leak-proof. - Highest-Quality Polypropylene: We've upgraded to the best material for durability and safety. - Branded Design: Now features our logo.