Our borosilicate glass baby milk bottles are made of borosilicate glass tubes,the features are as below: Made from high borosilicate glass with low expansion coefficient3.3; Microwave-oven and dishwasher safe; Heat-resistant, could be sterilized in high degree, thermal shock can reach 100centigrade degree; Crystal-clear,sparkling with no water wrinkle & mould wrinkle; Unique design, enabling babies to enjoy fully-dissolved milk; Printing oil from France without the content of lead & cadmium; Contain NO poisonous substances to human body,BPA-free; The composing are bottle,rust-proof cap,Crossing stick and rubber nipple. The bottles are mostly exported to Japan and Korea markets. Good quality at competitive rates are available.