These corrosion resistant brackets secure a Manta Wing or Bat Wing Awning to the side profile of a Slimline II roof rack.No drilling required. The brackets simply bolt onto the t-slots in the side profile of your Slimline II Roof Rack. Pre-drilled mounting points designed specifically for Manta/Bat Wing Awnings allow installation in mere minutes.Made from 3CR12 stainless steel and black powder coated with the same durable, weather resistant coating as the Slimline II Roof Rack Depth: 4 in Length: 7 in Width: 11 in