Classic Mason Jar Style – we have turned the classic half gallon, 64 ounce ball mason jar into an easy to pour, durable and stylish pitcher! Heavy Duty – ball mason jars are made from thick, durable soda lime glass. They are built for the rigors of canning, the same way they were over 100 years ago. Innovative Features - no more messes! The flip cap stays open and out of the way when you are pouring or drinking. It will never flop back down and get in the way of the stream. The flip cap is securely attached, it will never fall off. Reliable Sealing – a silicone seal in the lid ensures that the pitcher will not leak where it screws onto the jar. The flip cap has a secure snap fit closure that will not leak. No BPA or Other Harmful Chemicals - made of food grade compliant, BPA free glass, plastic and silicone. Dishwasher safe.