Highly temperature resistant glass. Can be heated and cooled quickly, cleaned in the dishwasher and sterilized at high temperatures. Does not absorb smells, flavors or colors from food. Flat, soft teat – like mom's breast when breastfeeding.  94% of babies accept our bottle teat. Wide openings for easy filling and cleaning. Made in Czech Republic/Europe. Box Contains: 2 x 170ml glass bottle. 1 x 260ml Glass Bottle. 1 x start soother.