4 bottles supplied. Clinically proven to reduce Colic. The Avent feeding bottle uses a valve which works with baby's natural feeding action. Easy to combine breast and bottle feeding. 2 x BPA free Airflex feeding bottle 260ml/9oz. 2 x BPA free Airflex feeding bottle 125ml/4oz. Wide neck. Plastic. 2 x extra soft/slow flow teat. 1 x newborn soother. 1 x bottle and teat brush.