Feature:1. This puller is physical redress correction, which is no side effects,safe and painless.2. You can wear it all day even sleeping.3. Small size, easy and simple to use. 4. Strong suction, correct your nipple faster and better.5. Generally after 1-3 months, can recover to a more ideal state.Specification:Material: Silicone+PPApplicable Crowd: Young girl and pregnant womanHow to use:1. Assembly the syringe and cup together (insert and tighten)2. Put cup on the nipplePut cup on the nipple ,Pull the syringe, suck out the inverted nipple3. Take off syringe, leave the cup on nipplePackage List:1 pc of Nipple CorrectoNote:1.Please allow 1-3mm error due to manual measurement,Please make sure you do not mind before you bid.2.The colors may be a little difference for the different monitors displays, please understand.