Drinks that flow from mason jars just taste sweeter. I think that’s a proven fact. The Cuppow Mason Jar Sippin’ Lide makes the experience that must sweeter too. Its simple design will transform your set of jars into fantastic travel mugs. Unscrew the top, pour in your beverage, and replace the inner seal with Cuppow before screwing the lid on tight. Voila! A naturally BPA-free way to drink on the go for the whole family.