ChuChu Baby Bottles 150ml Set of 2, glass and plastic. No need to change nipple size. Very convenient, used from newborn to weaning!! Glass: Started using it after one month old, a few times a day, but mainly breastfed, so after a few months, used it only once a day at night. Used it until around 6 months old when starting baby food. Plastic: Used a few times only when going out or staying overnight. Please understand that these are used items. - Brand: ChuChu - Color: Blue (cap) - Size: 150ml Thank you for looking. I have many other baby items for sale. I will offer a discount for combined purchases, so feel free to comment. ☺︎