Designed to Nourish™. Spill-Proof/Easy Flow 6 oz Training Cup comes in a variety of bright colors. Features unique Sip-Activated Valve – Only baby s mouth activates valve, so there is no mess. Dishwasher safe- - top rack only. BPA Free. Colors will vary. Solid Feeding from Dr. Brown s Giving your little one the best of everything begins with a foundation of proper nutrition. That s why Dr. Brown s has partnered with infant nutritionists and moms to create a complete solid feeding sys.