This Avent® bottle has an anti-colic valve that flexes and allows air into the bottle to prevent vacuum build-up. Air bubbles move away from nipple and into bottle, not into baby's tummy. Two-piece anti-colic system consists of the Avent® nipple and adapter ring. The bottle's naturally shaped nipple promotes proper latch-on, while the wide shape is for easy filling and cleaning. Bottle also includes accurate feeding measurement markings. BPA free. Imported.
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