Pack of pink baby bottles Options PP, +0months, 120ml, 2pcs, Dr. Browns Description: Can be used with or without the ventilation system. The unique internal ventilation system eliminates vacuum and air bubbles to help reduce colic, expectoration, belching and gas. Eliminating negative pressure can help reduce fluid build-up in your babys inner ear. The positive pressure design mimics breastfeeding and is ideal for both breast milk and formula. Presentation: 3 x 120 ml