Here is surprising news for mothers in need of baby bottles despite the fact that an environmental hormone has been detected in bottles currently on the market. SK recently developed an environment friendly baby bottle harmless to humans with polyethylene naphthalate, a new material that contains no environmental hormone. Also it provides a better alternative to the many teats currently available. There are four kinds of teats , either flat and round, depending on the age of the baby. Both mother and child can select the one right for them. SK UB Bottle and Teat are produced by SK with pride. We are exceeding our customers＇＇expectations. Please feel confident to raise your baby to lead the future in good health.