PRODUCT DESCRIPTION For use with all standard and wide-neck Dr. Brown's Natural Flow baby bottles, this Dr. Brown's Natural Flow Bottle Brush features a grooved, no-slip handle and a combination sponge and bristle brush head for thorough, easy cleaning of bottles. At the base of the bottle brush are fixed chevron channels, designed specifically to clean nipples with ease. A storage clip is included so you can house the brush near the sink. FROM THE MANUFACTURER This Bottle Brush has been designed for use with all standard and wide neck Dr. Brown's Natural Flow baby bottles. It features a combination sponge and bristle brush head for thorough, easy cleaning of all Dr. Brown's baby bottles. It has fixed chevron channels at the base of the Bottle Brush, which are designed specifically to clean nipples with ease.