This set includes 10 Medela bottles with a capacity of 2.7oz/80ml each, along with 2 6ml Colostrum Collectors and 1 Quick Clean Steamer bag. The bottles are designed for safe storage of breast milk and feature a screw top closure, self-standing capability, and are freezer and dishwasher safe. The Colostrum Collectors are reusable and the set also comes with a Quick Clean Steam for easy sterilization. This product is perfect for breastfeeding mothers who want a safe and reliable way to store their breast milk.