This manual breast pump mimics the baby's rhythm and provides a comfortable experience. - Brand: medela - Model Name: Harmony - Features: Manual, lightweight, portable - Benefits: Mimics baby's rhythm, comfortable soft rim - How to use: Easy, perfect for carrying around - Accessories: Instruction manual, cap Thank you for looking. I used this for about a month after giving birth and have been storing it at home. *Please sterilize with boiling water before use.