Ball 40003 Pour & Measure Cap with Quart Jar. The number 2 use for mason jars outside of canning is storage. The new Ball Pour & Measure Cap makes mason jar storage a cleaner and easier option with its specially designed pouring spouts and unique measuring cap closure. Two spouts designed for both dry goods and liquid ingredients – makes using mason jars for storage a clean and easy option! Measuring cup lid with measurements in TBSP, mL, and cups up to 1/2 cup. BPA-free and dishwasher safe (top rack). Includes one Pour & Measure Cap and one Wide Mouth 32 oz. Quart Jar.