The Munchkin Silicone Breast Milk Collector is a convenient and practical tool for breastfeeding mothers. This 1.5oz clear collector features a storage plug for easy and safe storage of breast milk. The silicone material is soft and gentle on the breasts, making it comfortable for use during milk production. With the Munchkin brand known for quality baby products, this collector is a reliable option for milk collection and storage for nursing mothers. New product box was opened.