Comotomo Baby Bottle Bundle (7-piece Set) is the perfect gift for expecting or new parents. Our beloved bottles feature an innovative and sensible design to most closely mimic breastfeeding - making building your registry or gifting the right bottles a breeze! Comotomo Baby Bottle Bundle includes: 2 x 5oz Bottles 2 x 8oz Bottles 1 Pack (2 units) x Slow Flow Nipples (0-3 months) 1 Pack (2 units) x Medium Flow Nipples (3-6 months) 1 Pack (2 units) x Fast Flow Nipples (6+ Months) Designed to mimic breastfeeding to reduce bottle rejection and nipple confusion. Built-in dual anti-colic vents provide consistent milk flow without the unwanted air-intake to prevent colic. Made with high quality, food contact grade silicone for safe feeding, free from chemicals such as BPA, PVC, and Phthalates. Truly wide-neck design makes it easy to clean the bottles by hand without a brush. Safe to clean in dishwashers (top rack), as well as microwave, steam, and electric sterilizers. 5oz bottles come with Slow Flow nipples (0-3 months), and 8oz bottles come with Medium Flow nipples (3-6 months). Faster flow available separately. Compatible with most warmers and sterilizers in the market.