Spring rings from Darts of the highest quality. Made in the USA. Spring rings are used to mount hooks on different types of lures. On sea trout lures, two spring rings are often needed for better hooking and the risk of losing the fish is minimized. For regular wobblers, spring rings are used between the hook and the lure. Sometimes these rings rust and you always want components you can rely on. Always carry some extra spring rings with you on the lake.