This is a double electric breast pump. I obtained it in the US when I gave birth, so the instructions are in English, but there are diagrams, so I think it's easy to understand. - Brand: medela - Model name: Pump In Style - Type: Double electric - Accessories: Instructions, adapter, tubes, bottle caps - Parts: Flask, flange - Power supply: AC adapter As shown in the second picture, there are two sizes for the part that attaches to the breast. (Please use the one that fits your areola size) As shown in the fourth picture, there are only three bottle parts. I would appreciate it if you could purchase this, understanding that it is a used item. Thank you for looking.