Reduced Wind Resistance and Noise: Streamlined aerodynamic design reduces drag and wind noise, ensuring a smoother driving experience. Upgraded Thickened ABS Shell: Enhanced thick ABS material offers impact resistance, waterproof, rust-resistant, and heat-resistant properties. Suitable for outdoor use in various weather conditions, it withstands bumps and prolonged use without damage or deformation. Dual Opening & Dual Locking: Equipped with anti-theft locking devices on both sides, allowing access from either side. Six locking points enhance security, while sturdy support arms keep the box open until closed for convenient access. Compatible with Various Crossbars: Fits crossbar installation center distances of 25.7-37.7 inch / 652-958 mm. Includes complete installation tools, no drilling required. Features bottom metal bars for enhanced stability. 8 cu.ft / 220 L Capacity: The rooftop cargo box maximizes roof space, providing extra spacious storage. It supports a max load of 165 lbs and includes two straps to securely fasten items inside, meeting diverse storage needs.