【Simple to Use s simple to use, just place Nipple Suction on teat and pump, pushing will draw out pump until teat stands upright. 【Multiple Functions】You can use Nipple Suckers For Breastfeeding to improve problems with flat or inverted nipples and problems with small or built-in nipples in breastfeeding mothers. 【Using2-3 Months】Inverted Nipple will bring you efficient and satisfying results; more you use, better effect, will take about 2-3 months. Material】 Rubber nipple aspirator Nipple is healthy, no burden on skin, and can be guaranteed for a long time.