Philips AVENT - 6 oz Breast Milk Storage 10-Piece Starter Set, BPA Free: * Breast milk storage starter set includes: * 10 lids * 2 VIA adapters * 10 pre-sterilized cups * Bisphenol-A free * Easy to organize * Leak-proof, twist-on lid * Breast milk storage set is perfect for on-the-go use * For use in refrigerator/freezer * Simply insert a sealing disc to store breast milk in the fridge or freezer * Replace the sealing disc with an avent nipple for feeding - no need to transfer milk * Fits all Philips AVENT breast pumps and nipples