Duo® revolutionizes baby feeding with the first hybrid bottle that pairs the protective benefits of INVINCI-GLASS® with the lightweight durability of premium plastic. Milk touches 100% pure INVINCI-GLASS®, preventing shattering, staining, odors, or aftertaste. The award-winning INTUI-LATCH® nipple provides a natural, intuitive latch, breast-like flow, and anti-colic venting for comfortable feeding. Minimal parts make cleaning simple, and the bottle is dishwasher, bottle warmer and electric sterilizer safe. BPA-, BPS-, PVC- and phthalate-free. Includes: (3) 5oz and (3) 9oz DUO® bottles with Stage 1 slow-flow nipples, (2) Stage 2 medium-flow nipples, and (2) PhysioForma 0-6m silicone orthodontic pacifiers with sterilizing case.