- For use with all standard and wide-neck Dr. Brown's Natural Flow baby bottles - Features a grooved, no slip handle and a combination sponge and bristle brush head for thorough, easy cleaning of bottles - Fixed chevron channels, designed specifically to clean nipples with ease - Storage clip is included to house the brush near the sink - Use with all standard and wide neck Dr Brown's natural flow baby bottles - BPA free - For use with all standard and wide-neck Dr. Brown's Natural Flow baby bottles