1.Quality selected FDA standard food grade material. 2.Premium PPSU material. 3.The heat resistance of the feeding bottle is up to 197°C, BPA-Free. 4.Experimental evidence proves that the feeding bottle is bearable with 1000 times repeated steam sterilization. 5.Light bottle with high hardness, extra durable! 6.Printed with Germany imported lead-free ink, SGS non-toxic tested. 7.Equipped with round hole mother's touch anti-colic nipple.