"This set is wonderful. My son is 5 months and he still prefers the newborn nipple that came with this set. These bottles are second to none if you’re interested in preventing colic and gas. HIGHLY REC"
"All I can say is WOW! The air vent allows air to flow so to prevent the vacuum effect and prevents baby from swallowing air. wide mouth bottles and Y cut nipples are best for cereal and milk feedings."