Betta Brain Replacement Nipples for Doctor Betta Baby Bottles, Round Hole, Small, Set of 2

[Product size] 3.7cm x 3.7cm x 4.1cm [Country of manufacture] Japan [Material] Silicone When using the Brain nipple, be sure to use it with the [Brain replacement cap hood]. If the air valve on the back is damaged, it may cause milk leakage. Please be careful when cleaning.