Deeply Relieve Blockage: Referring to the international professional massage method, Momcozy lactation massager adopts 3 powerful deep-shiatsu kneading massage balls, which can massage circularly like real hands to actually relieve clogged ducts every time pumping or breastfeeding. 3-in-1 Multifunction: The lactation massager has 12 types of care methods including 3 speeds of kneading, 6 modes of vibration, and 3 levels of heating, from which you can always find the gentlest and most effective mode to dislodge the clogged ducts, help with the engorgement and speed up the letdown process. Small But Efficient: Let go of hot towels, warm compresses, and sore hands, this breast massager is small enough to fit in any bra while helpful a lot with both nursing and when pumping with your breast pump. Shorter pumping time, a Little less hassle!