Covert Hook and Black Nickel Hook comparisonGardner’s Covert Hooks are plated with a unique stealth finish that is adaptive to ambient light. By mimicking the surrounding light conditions, Covert hooks blend in seamlessly with the environment. This range has set a new benchmark in hook technology – improved camouflage, sharper, stronger points and better performance than ever. To fully appreciate their unique finish, check them out at your local tackle shop and make up your own mind.