Package of baby bottles blue Options PP, +0months, 120ml, 2pcs, Dr. Browns Description: - Can be used with or without the ventilation system. • - Unique interior 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. - Positive pressure design mimics breastfeeding and is ideal for both breast milk and formula. Presentation: 2 x 120 ml