Tommee Tippee Natural Start Baby Bottle Teats, Fast Flow, 6m+, Pack of 2To help reduce pollution and end deforestation we use responsibly sourced recyclable cardboard.Brighter futures™Good to know!These teats are only suitable for use with natural start™ and closer to nature bottles, they are not suitable for use with advanced anti-colic™ bottles.Choosing babys flow0m+ slow flow 10m+ vari flow x3m+ Med flow (2)6m+ Fast flow (3)Signs its too fast... gulping, coughing or gagging, refusing to feed, or excess milk dripping out of babys mouth.Or too slow... if baby takes over 20 minutes to finish a feed, tugs at the teat or falls asleep while feeding, they may need a faster flow.Materials listing: Silicone.Complies with EN 14350.All IP rights held by Mayborn (UK) Limited and/or its affiliates.Tommee Tippee®, Natural Start™, Brighter Futures™, Advanced Anti-colict™. Copyright © 2023.