ChuChuBaby Wide-Mouth Baby Bottles, Set of 3 Made in JAPAN Nipple hole size: Super Crosscut PPSU type, changes with sucking strength BPA-free The bottle is made of polyphenylsulfone (PPSU), a material that does not contain approximately 70 endocrine-disrupting chemicals (environmental hormones) that are considered to affect the human body. Brand new, unused Unopened, but Please understand that these have been stored at home. Free shipping nationwide Nationwide anonymous delivery