Thank you for viewing. This is a Medela manual breast pump. It has been used less than 10 times and has been sterilized by steam boiling after washing. Includes the instruction manual (slightly folded), but no box. There are two spare rubber parts. Please understand that this is a used item before purchasing. [The oval-shaped breast shield rotates 360 degrees, allowing you to adjust it to your liking! Plus, it comes with a soft cover for a gentle fit] The shape and size of breasts vary from person to person. Moreover, they are affected by the mother's physical condition and change throughout the day. Medela has focused on the "shape" of the breast shield so that any mother can use the breast pump without stress and with ease. And finally, they arrived at an "oval" breast shield. The breast shield can rotate freely 360°, so the new oval breast shield (PersonalFit Flex breast shield) fits perfectly to each person's breast condition. [2-Phase Expression technology for natural and gentle expression] When a baby breastfeeds directly, it first sucks at a fast rhythm to stimulate the breast, and when the milk comes out, it changes to a slow rhythm to drink the milk. The Harmony manual breast pump reproduces the baby's natural way of drinking with a short handle and a long handle. [Easy-to-grip, fatigue-resistant design] The ergonomically designed, easy-to-grip, fatigue-resistant handle is rotatable and can be used with either hand. You can adjust the suction pressure with this handle, so you can adjust it according to the condition of your breasts. [Simple design for easy cleaning] In addition to hand washing, a dishwasher can also be used for cleaning. In addition to boiling sterilization, steam sterilization in a microwave oven is also possible. (Please follow the instruction manual of your manufacturer.) [Convenient to carry] It weighs only 105 grams, making it convenient to carry when you go out.