Thank you for viewing. This is a set of two 200ml bottles specifically for the Pigeon "Breastfeeding Realism Direct-Attach Nipple," which is widely used in maternity hospitals. Individual sales are OK ^ ^ Unlike regular baby bottles, there's no need for caps or hoods. You can attach the direct-attach nipple directly, making it very convenient for nighttime feedings and frequent feedings. • Set Contents: 　Bottle (200ml, glass) x 2 • Condition: 　Used for six months, so the nipples are cloudy. The glass bottles were also used for six months, but there appear to be no noticeable scratches or stains.