One Green Bottle’s new baby bottles are here! 150ml stainless steel bottle, BPA/BPS free non leaching polypropylene teat holder ring, 2 measuring cap/covers, food jar lid, silicone sippy cap, silicone rubber slow flow teat Single wall stainless steel so you can cool down/heat up safely and easily. All plastic component parts BPA/BPS free non leaching polypropylene. FDA/BS EN 14350 certified Adapts as baby develops. Suitable for newborns, interchangeable with proprietary baby teats that have a flat base. We recommend NUK and Pura. Change to faster flow as baby develops. Use food jar lid for transporting formula or food when teething. Use cow shaped silicone sippy cap for when older babies need a drink. Supplied in stunning gift packaging.Steriliser and boil wash safe, just take apart and allow to fully cool before reassembly