Popyum Baby Bottle Starter Set For Breast And Formula Feeding, 4-pack, Pink, 2x 5oz Bottles (150ml) + 2x 9oz Bottles (260ml)Includes two 5oz (150ml) bottles with #1 slow flow anti colic nipples, two 9oz (260ml) bottles with #2 medium flow nipples, and a funnel. One hand operation allows feeding while holding baby or multitasking. Stores formula and water separately until released with a button press and a shake. Compatible with breast milk: milk and water stay isolated in the bottom until released into the nipple area. Simple five part construction and wide design for easy