The Joovy Boob Diamond Glass Bottles are the toughest glass bottles known to baby. 50% less breakable, BPA-free, and designed to go from freezer to bottle warmer without shattering, each practical bottle can be paired with any nipple type. age.mfg_minimum: 0 months and age.mfg_maximum : 12 months age.mfg_minimum: 0 months and age.mfg_maximum : 12 months