Reliable material: made of quality PP and silicone materials, these nipple correctors are safe and healthy, non-toxic and tasteless, no burden on sensitive skin, and can be applied with confidence for a long time Easy to apply: these nipple suckers are very simple to operate; Just place the suction cup cover on the inverted or flat nipple, and then press the nozzle part, push will draw out the air in the pump and use negative pressure to drag the nipple to achieve recovery effect Comfortable to use: these nipple retractors will produce efficient and satisfactory results for you; The more you use, the better the effect; It is recommended that you use it 3-5 times a day, you will get satisfactory effect in a few weeks; And the silicone nipple suckers are similar in size to nipples, making it easy to hide under bras and other clothing, and will not affect the appearance after wearing and are very comfortable Wide applications: these nipple suckers are good choices to improve the flat or inverted nipple problems of breastfeeding mothers, at the same time, they can also improve the problem of small nipple or built-in nipple caused by the developmental delay of girls, helping to regain health and beauty and regain confidence, and can be applied to smoothing the breasts and massage the nipples