Evenflo Milk Collection Containers work with all Evenflo pumps and are a convenient, all-in-one storage and feeding solution. Moms can choose to feed their baby directly from the collection bottles or store their milk for later use. Enhanced silicone sealing discs storage tops ensure freshness of milk while the sealing caps prevent spills and leaks. The bottles are fridge and freezer safe for storage. Compatible with Balance + Standard nipples, so all you need to do is attach a nipple and your milk collection bottle becomes a simple, stress-free way to feed baby your pumped milk without losing a drop.