The Fuji EZ Hook Keeper comes with 2 O-rings to fit most blank diameters. It folds down out of the way so it won’t become entangled in the line when casting your lure. It can be used with a wide range of hooks, and adapts to any position on the rod. It also works great as a linekeeper for when you want to pick up and move quickly to another spot and keep lines from getting tangled.