Baby feeding bottle, made of liquid silicone rubber, free of BPA, we are manufacturer of silicone products, we can supply silicone feeding bottles, nipple, teether, pacifier, baby bowl, spoon, cups, silicone sleeve for glass bottles, etc. Pls. contact me for more details. We have several existing designs, and we provide OEM and ODM Service. Feeding Bottle Material: Bottle: silicone, heat-resistant to 200, sterilizable. Nipple: cross cut silicone nipple, heat-resistant to 200, sterilizable. Twist Cap: polypropylene, heat-resistant to 120, sterilizable. Bottle Cap: polypropylene, heat-resistant to 120, sterilizable. Bottle sleeve: match with twist cap, polypropylene, heat-resistant to 120 Features: 1: Safe silicone material, colorless, odorless, nontoxic, high and low temperature resistant (-50 200, sterilizable, ametabolic, keep fresh. 2: Measure up to SGS and QS standard, maintain baby health. 3: Unique skidproof design for comfortable and secure grip. 4: Wide diameter for easier cleaning and filling. 5: Wide nipple bottom, natural feeling as breasts to baby. 6: The nipple has automatic air flowing hole to adjust the flow of milk and prevent the baby from sucking excessive air, reduce the phenomenon of flatus, disgorge and hiccup. 7: Unbreakable design for outdoor use. Preservation method: Away from the fire source avoid contacting with sharp objects. Caution: 1: Sterilize before using by boiling water and store in a clean and safe place to maintain the health of your baby. 2: Please dont spin the twist cap too tight or too loose to prevent leakage of milk. 3: Check the bottle and the nipple frequently. Replace immediately if any crevice or scratch is detected.