M5 breast pump the new concept Baby Mouth is structured like a baby sucking at a horizontal angle, painless lactation produces more milk. M5 has a micro-vibration tech to promote milk secretion during breastfeeding. Lightest Hidden All-in-one Pump which is only 230g, 2/3 the size of ordinary pumps. Momcozy breast pump M5 with 5 sizes 17/19/21/24/27mm, fit for different breast shapes. M5 has a stylish and compact design with 4 colours to choose from and with an exquisite storage handbag so that moms can also show their fashion taste in breastfeeding life, making breastfeeding both beautiful and convenient.