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 steel and black powder coated with the same durable, weather resistant coating as the Slimline II Roof Rack. Note: This Awning Bracket is suitable for most 270° Awnings.