Uniquely designed nipple cover with leak proof icon. Seal tight collar locks nipple securely in place to guard against leaks. Unique vacuum disc works with baby's natural sucking motion to push food forward and keep air out. Special no-mess spoon (patent pending) attachment, designed to help mom introduce the next natural stage in baby's feeding regimen, using a spoon! Keeps both mom's and baby's hands mess-free. Convenient 2 oz feeder. Silicone feeding nipple with patented NUBY dimples that massage infant's gums, aiding the teething process. Leak proof nipple cover. Soft training spout. Detachable handles for easy gripping.