Includes 2 Bottle Collars to adapt nipples to the .

• Safe for use in dishwasher (top-rack only), sterilizer, and boiling water.
  
• Dr. Brown’s™ Nipples: Compatible with Dr. Brown’s™ Wide-Neck nipples only
• Philips Avent™ Nipples: Compatible with Philips Avent Natural nipples only
• Made from food safe, BPA-free materials.