For 99-17 Twin Cam Models. CLARITY ROCKER BOX COVERS. Black Ops. Exposed internals of the twin cam rocker boxes with a design that matches the rest of the Clarity line of products. The Clarity line gives a unique opportunity to see the inner workings of the valve train. Laser engraved RSD logo. Available in chrome, Contrast Cut™ and Black Ops™ finishes. Hardware and gaskets included. Sold as a pair. CLARITY ROCKER BOX COVERS. Exposed internals of the twin cam rocker boxes with a design that matches the rest of the Clarity line of products. The Clarity line gives a unique opportunity to see the inner workings of the valve train. Laser engraved RSD logo. Available in chrome, Contrast Cut™ and Black Ops™ finishes. Hardware and gaskets included. Sold as a pair. - Part Number - 0940-1188