Our Parent's Choice Bottle and Nipple Brush is a smart and simple way to keep your baby's bottles clean. The dishwasher-safe design features soft and durable free nylon bristles and a square brush head for easy reach and improved cleaning. This innovative Bottle and Nipple Brush is two brushes in one, the Nipple Brush conveniently stores inside the handle of the Bottle Brush when not in use. The square brush head is ideal for sweeping away residue and getting into tight spaces, including baby bottle nipples, sippy cups, and breast pump parts