Dr. Brown’s Natural Flow Level 2 ANTI-COLIC Nipples ( 3m+) Medium Flow 6 Ct Box. These nipples are in excellent brand new condition, unopened, unused- nipples come in a factory sealed plastic sleeve inside there original box. BPA FREE. Super- soft, high- grade silicone. These are LEVEL 2 Medium Flow for: 3 month + babies. You will receive ( 1 )Box of 6 nipples. Please see photos for better description. Thank you & have a wonderful day!