Turn any Mason jar into a pitcher! Pour, store, shake, carry, or drink any liquid or pourable dry good (such as sugar, salt, grains, seeds, popcorn, nuts etc). Microwave, dishwasher, freezer safe. Polypropylene plastic (BPA-Free) with a thick LFGB silicone seal. Air-tight, leak proof seal for long term storage. New and improved! We took all our customer feedback from the v1 lids and created a new mold to make the best possible version of this product: • Improved threading • Use our existing LFGB silicone sealing rings • Cap is easier to open and close • Highest quality polypropylene plastic available. • Stronger, larger handle • Both sizes now have a carry loop • Color match our sleeves