Made of transparent, odorless and tasteless high quality silicone, Mamajoo bottle nipples, like all Mamajoo bottles, do not contain Bisphenol-A substance and are ideally soft for babies. Mamajoo bottle nipples have an anti-colic valve to help reduce the risk of 'baby colic', to help prevent air swallowing by ensuring constant fluid flow while feeding babies. Designed in the form closest to the mother's breast to support the baby's natural sucking movement, the wide Mamajoo Feeding Bottle Nipples flex as they do in breastfeeding thanks to the augers on them. This feature is designed to make babies feel like they are sucking from the breast. Thus, mothers can combine breastfeeding and bottle feeding when necessary, and feed their babies with breast milk for longer. Mamajoo Baby Bottle Nipples support active feeding. Since the holes in the Mamajoo baby bottle nipples are designed to increase fluid flow as the baby sucks, both the development of the baby's sucking instinct and the effort to equalize the effort it takes while sucking the mother's breast are supported. The smallest size (S) bottle nipples designed especially for babies who are fed with breast milk during the neonatal period are designed to be less flow than the standard bottle nipples so that babies do not get used to the ease of feeding. Since babies will need more food and flow rate as they grow up, it is very important to choose and use the right bottle nipple that provides the flow rate appropriate for their development. In addition, babies should not be fed less than they need. Mamajoo pacifiers are marked to help find suitable month and flow rates for babies. It should also be remembered that these signs are indicated only to guide you in your choice, and that babies show different development. Mamajoo Baby Bottle Nipples offer 4 different flow rate options that ensure fluid flow suitable for the development of growing babies. Mamajoo bottle nipples are packaged with a storage box, thereby providing an economical and user-friendly product to our consumers, as well as an environmentally friendly packaging solution, not disposable. The storage box in the product package can be boiled or sterilized with a sterilizer and can be reused to hygienically store the bottle teats. Product Advantages: Highly reliable, BPA-free and healthy Mamajoo baby bottle nipples are the ideal nutrition product for your baby after breastfeeding with its ergonomic design and anti-colic valve system. The anti colic valve in the Mamajoo bottle nipple helps prevent babies from swallowing air during feeding. Mamajoo bottle nipple, which is presented in the form closest to the mother's breast, is designed to stretch thanks to the spirals on it, just as it is in breastfeeding while the baby is sucking. The flavorless and odorless silicone Mamajoo bottle nipple makes it easy to combine breastfeeding and bottle feeding. Mamajoo bottle nipples are made of high quality transparent, tasteless and odorless silicone. Ideal for all age groups, it is soft, smooth and easy to clean. The product storage box, which is included in the packaging of Mamajoo bottle nipples, can be sterilized and used for many times and allows you to keep the bottle nipples hygienically. There are 4 types of Mamajoo bottle nipples with different liquid flow rates in accordance with the development and need of babies. Flow Setting: Age Range Addressed: N.1- S- slow flow 0 months + N.2- M- medium flow 6 months + N.3- L- fast flow 12 months + N.4- XL-dense flow 12 months + Package contents : 1 pcs Mamajoo 0% BPA Silicone Feeding Bottle Nipple 2 Items Item Content: Silicone nipple Cleaning: Can be washed in the dishwasher, sterilized.