Transform your jars into your new favorite on-the-go drinkware! Our Drink Lid and Sleeve is BPA free and made from recycled materials, especially designed to bring even more uses to your regular mouth mason jars (jar included). The bright orange lid snaps open and closed, providing you with a drip-free seal when properly secured. Sili sleeves insulate you from hot Coffee or tea or the cold of a refreshing summer ice-filled drink in a ball jar. We recommend using a 16 oz. jar for best use.