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.From around 5 monthsIts OK to use microwave ovens (Take off cover)A simple structure that is easy to washCross cut spout enables control by sucking powerIts OK to sterilize by boilingEasy to hold and learnMade in Polypropylene (PP)Made in Japan