Thank you for viewing! This is a set of a Pigeon slim-type 200ml (glass bottle) and two slim-type nipples (size M). Also included is the size S nipple that came with the bottle (unused). My son suddenly stopped drinking milk, so I had been using the 母乳実感 (母乳実感 is a brand name, literally "Mother's Milk Realization") bottles, but I bought these slim-type ones to try them out. ...However! He wouldn't suck at all, it was counterproductive (；ω；) I only used them for about a minute ( т т ) One of the size M nipples is unused but has been opened and sterilized... Raising a child is expensive enough as it is, I made a useless purchase... Pigeon is so expensive!!! Tears! If there's anyone kind-hearted out there, please consider purchasing this as a volunteer effort. To all the mothers and fathers who happened to see this product even though you don't need it, thank you for your hard work every day. Let's do our best with childcare together (´；ω；｀)