The Parent's Choice Bottle Liners are designed for use with baby bottles, providing a convenient and safe feeding solution for parents. With a capacity of 8 fl oz and made of BPA-free plastic, these liners are pre-sterilized and leak-proof, making them ideal for feeding infants. The clear color allows for easy monitoring of milk usage, and the ready-formed design ensures hassle-free preparation. Made in China, these bottle liners are a reliable choice for parents looking to simplify their feeding routine.