The Teamoy Breastmilk Ice Pack is designed for breastfeeding working moms to store and transport breastmilk safely. Made from polypropylene, it is BPA-free, sturdy, and leak-resistant. The contoured shape holds bottles upright and fits around breastmilk bottles perfectly, keeping them cold for a long time. It is easy to use by adding water, waiting for the powder to solidify, and refrigerating before use. It is perfect for working moms, picnics, and long-time transport.