A great new invention! Durable plastic ring helps to keep feed from spilling out the top when livestock are eating from a round feeder. Designed to fit the Little Giant 8-Gallon Plastic Round Feeder (Item No. P800, sold separately) and the Little Giant 6.5-Gallon DuraFlex Rubber Feeder Tub with Hooks (Item No. HP750, sold separately). Mounting tabs in the Round Feeder fit eyelets in the Feed Saver Ring to hold it in place. Reduces feed waste and cleanup time. Ring is 20 inch in diameter by 1.46 inch high.