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.Milk flow controlled by baby's suction and teething power. Wide Neck design for easy modulation Dairy. Highly recommended by breastfeeding mom's. All age are suitable.Why select PPSU material?PPSU (Polyphenylsulfone)is high performance thermoplastic offering better impact resistance and chemical resistance than PP and PES. It is extremely heat-resistant and is very well suited for steralising either with steam or in the microwave. PPSU has high operating temperature (180°C). It does not absorb odor or colour.