●【Stronger End Supports】End Supports are made of high-quality aluminum alloy, it has ultra-high hardness, is not easy to deform, resists corrosion, has a longer service life, and can withstand 220 pounds of weight. ●【Compatibility】Fit for GMC Yukon & Yukon XL, Chevrolet Suburban & Tahoe 2015-2020, Cadillac Escalade & Escalade ESV.Please check your vehicles Year, Make and Model before purchase. ●【Robust Construction】High quality light weight aluminum roof rack crossbars and base feets mounted on side rail, withstand max loading 100KG/220 LB.Black Powder Coated Aluminum Body Offers Non-Corrosion for Entire Life Time. ●【Versatility】 Wonderdriver Roof Rack Crossbar is Compatible for Cargo Carrier ,Bike Mounting Rack, Snowboards, Roof Box ,Roof Bag, Kayak Racks, Canoe Racks, Car Roof and other rooftop accessories & ensure you enjoy outdoor adventures to the fullest. ●【Less Wind Noise 】Low profile & streamline design makes it effective in reducing the wind noise when driving on a high speed. High clearance with the roof for a wide range of accessories. . High Strength Light-Weight Crossbar Constructed by Aircraft Aluminum ,Giving a Simple and Easier Installation Onto Your Car Roof. ●【Easy Installation】Absolute breeze to install and it fits like a glove. The easy direction + clear label on the product will provide great assistance to figure out how to install it. Package comes with a pair of crossbars, four end supports ,Accessory Kit (Stainless screws + Allen wrench + spare parts), instructions. ●【Worry-Free Service】Wonderdriver Crossbars Backed with a 12-month warranty, If you have any concern or questions, do not hesitate to contact us.