Pigeon electric breast pump set: Includes 25 breast milk freezer bags Breast milk freezer bag adapter The breast pump is in good working condition and has been tested. It has been sterilized in the microwave and stored, but please sterilize it again before use. All parts are included. The breast milk freezer bags include a pack of 20 (unopened), 2 (sample size, unopened), and 3 (opened), for a total of 25 bags. Please understand that this is a used item. It may be shipped without the original box. If you need the box, please let me know. Shipping method may be changed from Yu-Yu to Raku-Raku.