Enjoy your favorite cold drinks, smoothies or summer tea with Ball Mason Jar Sip & Straw Lids. The BPA free plastic lids fit perfectly on Ball Regular Mouth mason jars with the use of an appropriately-sized band, while the easy-sip opening ensures enjoyment of every last drop. Use alone or with the included reusable straws for added convenience. Set of 4 lids and straws. Pack of 6. Total is 24 lids and straws.