This is a set of two Pigeon Breastfeeding Realism baby bottles: one 240ml and one 160ml. They are made of plastic. They are very clean as they were hardly used due to exclusive breastfeeding. Each bottle was used about 5-10 times. As a bonus, I will include an attachment for Meiji Hohoemi formula cans and one unused nipple for Breastfeeding Realism LL. Please let me know if you don't need them.