This is a double pump set for the Medela Symphony. I purchased it from the official online shop when I rented the Symphony. I rented and used this set for two months. You can go hands-free by wearing a special bra, and since the Symphony is a hospital-grade breast pump, it's incredibly comfortable to use. I was also surprised by how much milk I was able to express. I will sterilize it by boiling it in hot water before shipping. *Please note that the breast pump itself is not included. - Brand: medela - Model Name: PersonalFit PLUS - Included items: Double pump set, bottles, covers, tubes - Size: 24mm - Material: BPA-free Thank you for looking.