... 3. Unbreakable,durable,anti-aging 4. Ful-fill FDA,LFGB,SGS 2011 new design silicone feeding bottle Material: Bottle: silicone, heat ... -resistant to 120,sterilizable.Bottle Cap: polypropylene, heat-resistant to 120,sterilizable.Bottle sleeve: match with twist cap, polypropylene, heat-resistant to ... and thickness; easy to assemble. Easy flow and anti-colic: Bottle with soft baby and with air vents in the ...