The Rightline Non-Skid Roof Pad is designed to keep your car top carrier from shifting while on the roof of your vehicle, keeping your Car Top Carrier in its place. The Roof Pad also protects your vehicle's roof from damage caused by sharp-edged objects in the carrier. The Pad's premium solid construction makes it a sizable upgrade over the copycat pads with holes. Using the Rightline Non-Skid Roof Pad is especially recommended when using car top carriers on vehicles WITHOUT a roof rack. The pad can be cut to size for use with any carrier.