Evenflo Classic Nipples Standard 8m+ Fast Flow 4-Pack PREVENTS NIPPLE COLLAPSE - Evenflo Feeding's Patented Micro Air Vents help prevent nipple collapse, and promote a more comfortable feeding experience for baby. GRADUAL NIPPLE SHAPE - The shape of the bottle nipple is important when shopping for your little one. The Evenflo Feeding Classic silicone nipples have a gradual transition between nipple length and base to allow baby to maintain their latch. EASY TO CLEAN - Keeping your baby safe is important but cleaning doesn't have to be time consuming. With just one piece, these silicone baby bottle nipples are easy to remove and clean. And best of all, they're dishwasher safe (top rack only), making your busy life a little easier. COMPATIBILITY - These Evenflo Feeding Classic silicone baby bottle nipples can be used with all Evenflo Feeding standard neck bottles. BPA FREE - You're committed to your child's safety and so is Evenflo Feeding. Their baby bottle nipples are 100% free of BPA, polycarbonates, PVC, and phthalates, and are constructed of food grade materials. 20% RESTOCKING FEES AND SHIPPING WILL BE CHARGED. IF ITEM IS FUNTIONAL OR INCOMPLETE. An Important Message Regarding USPS Tracking Numbers Due to high volume of shipments sent through USPS, Tracking numbers get recycled on occasion. This means, when you receive the notificaiton that your package has been shipped via USPS, and you try to track the status of the package, it may show your package was Delivered even though the label was just generated. Please don't panic, the solution to this issue is to wait until the Post Office scans the label, then the tracking information will update accordingly. Please let us know if you have any questions. Your feedback is extremely important to us! If you are satisfied with our service please take the time to give us positive feedback. We tremendously appreciate it! We strive for your complete satisfaction. Likewise, if you have any issues, please contact us first, and we promise we will do our best to satisfy your needs and solve the problem. If we resolve your problem, we kindly ask you to still leave us positive feedback. Your kindness will be extremely appreciated!