Avent Infant Starter Gift Set The Avent Infant Starter Gift Set is specially designed to help mothers and babies combine breast and bottle-feeding with ease. Four 9-oz. feeding bottles feature broad, soft, slow-flow, silicone nipples that mimic the shape and feel of the breast so Baby can suckle more naturally. Plus, an anti-vacuum skirt allows air into the bottle as Baby feeds, so less air is swallowed than with conventional bottles. Wide-neck design makes cleaning and filling AVENT bottles easier, too. All AVENT bottles are compatible with AVENT Isis Breast Pumps (sold separately). Built-in Airflex Valve The AVENT Airflex Natural Feeding Bottle uses an Airflex Valve which works with baby s natural feeding rhythm. Fresh feeds to be made up when needed Holds 2 AVENT Bottles, 2 Magic Cups or 4 VIA Cups. Curved brush head and molded tip Specially curved brush head and molded handle-tip reach the corners of all types of bottles, nipples and feeding equipment for thorough cleaning. What is included: Bottle and teat brush (1), Airflex Feeding Bottle 260 ml/ 9 oz (2), Airflex Feeding Bottle 125 ml/ 4 oz (2), Milk powder dispenser (1).