DescriptionFlat or inverted sunken nipples can be a potential problem for women wishing to breastfeed. Through gentle suction the pulls the out. In a matter of weeks of continued wear the will stay permanently erect. It is a really effective tool for new mother.Features-Color: White -Material: PP -Size: 10.50X2.50X2.50cm / 4.13X0.98X0.98in - Strong suction force, and the force of it is adjustable. - You just need only 15 minutes each time, do not need long-term wear. - Healthy PP material for your safe use and assured. - Small and delicate, easy to carry out, use it anywhere indoor. - Simple operation, a convenient and practical tool for mommy.