This baby feeding bottle has a wide bottleneck, and rounded corners, these bottles are easy to clean quickly and thoroughly. It is also designed to prevent leakage while feeding, for a truly enjoyable feeding experience for parents and baby. The Mom easy bottle has clear markings on the bottles to ensure accurate measurement and make it simple to determine how much your baby has eaten. The well-designed nipple allows for a secure latch and the ribbed texture helps prevent nipple collapse for uninterrupted, comfortable feeding which can help reduce overeating and spit-up.