This is a bundle that includes an 8 ounce baby bottle in green and a 2 pack of silicone medium flow nipples. Comotomo's innovative approach has changed the status quo of baby bottles into the next best thing to mommy. Natural shaped silicone nipples replicate the breast-feeding experience and minimize nipple confusion. Babies love the skin-like material for the bottle; it's squeezable and soft. Safety is on everyone's mind, and Comotomo's products are at the top of the list in all categories of concern: 100% BPA-free, PVC-free, Phthalate-free and Nitrosamine-free. Scratch resistant medical grade silicone will not harbor bacteria like scratch prone plastics do. Wide-neck design makes cleaning easy, and high temperature compatibility make it possible to boil the bottles and nipples for ultimate cleaning or sterilization. Anti-colic venting ensures baby has a happy tummy by eliminating vacuum build up. All this, and a truly non-leaking bottle.