baby feeding bottle, our patent design! StandardQ/YLJGXJ 8-2009 Comply with the stipulation of GB 4806.2-1994. Comply with the stipulation of FDA CFR 177.2600 Comply with the stipulation of 93/11/EEC and 2002/72/EC Patent No.: 200910036599.3 Appearance Design Patent No.: 200930069484.5 (bottle A) Appearance Design Patent No.: 200930069485.X (bottle B) 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.