Made in Japan Modern and simple Japanese design Wide opening gives baby the feeling of sucking breast milk, more comfortable and intimate PPSU does not contain any environmental hormones, including BPA, and has better heat resistance, abrasion resistance and stability than ordinary plastics Newly designed Super Cross Cut wide body silicone teat Equipped with ChuChu's unique Super Cross Cut nipple hole Highly simulated flat nipple design effectively reduces the front end collapse and flattening when sucking, making it easier for baby to suck No need to change the S/M/L size all-age teats, which naturally adjusts the flow according to the baby's suction power, and no milk will come out when not sucking to avoid choking the baby Specially designed as a wide mouth bottle, convenient for mothers to put in and take out milk powder Cold temperature resistance: -20?C; heat resistance: 120?C