365-DAY GUARANTEE: All of our products go through rigorous inspection and testing to ensure our customers receive top-quality items. We are confident you will enjoy it. In the unlikely event that the product is not to your standards, we will replace it for you, or give you your money back, no hassle!. There is a vent valve to form an inverted triangle structure. It allows for the smooth flow of milk by preventing the nipple from collapsing while the baby is sucking. EASY TO SUCK: 100% silicone rubber nipple and BPA-free. Featured with a yYcut hole, it is firm on one side and soft on the other side, which allows the baby to use the tongue and lips to squeeze the nipple to drink milk easily. SQUEEZABLE & SOFT BOTTLE: Made of premium PP, the middle part of bottle body can be squeezed to help feed the baby. And the bottom of the bottle is thicker, which is more stable. FOR THE SAKE OF BABY WITH CLEFT LIPS AND PALATES: Supervised by Dr. Masaru Tatsuno, MD, Showa University Medical School. Including two sizes of nipples.Age Range (Description): Baby. Bottle Type: Anti-Colic Bottle. Capacity: 8.11 Ounces. Material Type Free: BPA Free. Brand: PIGEON. Best Sellers Rank: #14,430 in Baby. Customer Reviews: 4.6 4.6 out of 5 stars 31 ratings 4.6 out of 5 stars. : B0B587BK47. Item Weight: ?2.39 ounces. Bottle type: ?Anti-Colic Bottle. Dishwasher safe: ?Yes. Batteries required: ?No. Number Of Items: ?1. Material free: ?BPA Free. material_composition: ?PP. Package Dimensions: ?8.35 x 2.44 x 1.89 inches.