Shape based on Dr. Browns Standard bottle nipple to avoid confusionnShield dips below babys nose for easier breathingn100% medical-grade siliconenDishwasher safe - Easy to cleann2 PacifiersnDr. Brown's one piece pacifier helps calm and soothe babies 0-6 months. It is shaped like a Dr. Brown's Standard bottle nipple to avoid nipple confusion. It is 100% medical-grade silicone, easy to clean and dishwasher safe. BPA free.