This breast milk collection, storage, and feeding system is the ultimate breastfeeding essentials starter kit. It eliminates messy milk transfers, so you have less washing and sterilizing, and no air in your baby s meal. It also works for combo feeding, as system is compatible with formula and first solids.The Twist Starter Kit contains:20 pre-sterilized Twist storage pouches with caps14 direct-pump adapters2 Twist Squeeze Bottles1 slow-flow Active Latch nipple with case1 medium-flow Active Latch nipple with case1 fast-flow Active Latch nipple with case1 Keeper breast milk holder and organizer2 nipple brushesBreast Pump not included.