Chuchubaby is brand from Japan which has more than  40 years of experience in manufaturing mom and bany care products like feeding bottles, baby wipes, breastpad, bottle wash, etc at affordable price with good quality.Its OK to use microwave ovens ( Take off cover )A simple structure that is easy to washIts gentle for the baby. ( Soft straw )Its OK to sterilize by boilingFrom around 8 monthsProduct make in Japan