Dr. Browns wide mouth teats were designed in conjunction with medical professionals and imitating nature. Its curved shape made of soft silicone is more flexible at the top of the teat and gradually firmer at the base, to help the baby latch comfortably and prevent it from being confused with the nipple. With 93% acceptance* the new bottle teat Options+ is similar to the mother's breast for more natural feeding, avoiding teat-nipple confusion thanks to its wider base that provides grip and mouth opening. The teat is 100% medical silicone and is perforated by laser, which guarantees the highest quality as the hole is exactly the same on all teats of the same level, giving an exact timed flow. The Options+ wide-mouth teat is more similar to the mother's breast to encourage better latching and reduce teat-nipple confusion.* After an exhaustive study of 884 babies, 93% of babies accepted the Dr. Brown's Options+ wide-mouth teat.Features :- Wide mouth;- Teat is 100% medical silicone;- More flexible upper part;- Similar to the mother's breast to encourage better latch;Technical information:- Material: Silicone;- BPA free;- Includes: 2 teatsGeneral information :Available levels depending on the approximate age of the baby:- Level P: 0m+ (Designed for premature babies);- Level 1: 0m+;- Level 2: 3m+;- Level 3: 6m+;- Level 4: 9m+;- Level Y: 9m+ (Recommended for thick liquids and cereals).