This is a hands-free breast pump. I bought it with the intention of using it, but due to circumstances, I never used it. Although it has not been used, it has been washed and sterilized once. Please note that there are water spots from drying. - Brand: izxi - Model: YW-688 - Set Contents: Main unit, storage bag, charging cable (USB type-C) - Capacity: 180ml - Features: Hands-free, BPA-free, hygienic - How to Use: Easy operation, USB charging - Number of Parts: 6 parts Thank you for looking.