【Better Base Feet】 Base feet are made from high grade aluminum which add to extra security and durability, better than most in the market made from plastic. High-grade aluminum alloy crossbars can support luggage, ladder or cargo,roof rails can support a weight of 260 lbs (118kg).【Upgraded Structure】This crossbar is capable for the job for life-time. Die-Casting mould aluminum crossbar clamp + Upgraded heavy duty 2.4mm thickness aluminum bar . Black Matte Powder Coated aluminum body offers non-corrosion for entire life time.【Compatibility】Compatible with Volvo XC90 2016 2017 2018 2019 2020 2021 2022 2023 2024 (for flush side rails). This roof rack cross bars is designed specifically for your vehicle, better than the universal ones.【Less Wind Noise 】Low profile & streamline design makes it effective in reducing the wind noise when driving on a high speed. Crossbar constructed by aircraft aluminum.【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.【Lifetime Tech Support】Package comes with a pair of cross bars, an allen wrench, user manual. We provide 1 years warranty and lifetime professional tech support for customers.