The present invention allows users to quickly develop web pages, or offers, to meet their advertisers’ individual needs; mange the offers and inventory; and prioritize the order in which the offers are displayed. A gate isolation layer extends at least over the sidewalls of the protrusion and a gate electrode extends over the gate isolation layer. The plate an aperture to receive tie down connectors. Each cutter arm includes an upper arm positionable generally perpendicular to the travel direction, a lower arm pivotable about an axis generally parallel to the travel direction, and a cutter head attached to a lower end of the lower arm.