Universal Roof Rack Crossbar: Our roof rack cross bars are designed to fit most vehicles without side rails ( with Rain Trough Distance: 105-107.7 cm (41.3-42.4 in) ; Window Distance: 114.4-131 cm (45-51.6 in). No drilling is needed - the metal sheet can be adjusted to match your vehicle's roof perfectly. (Note: Only for 4 or 5-door vehicles, not recommended for 2-door models). Please measure or confirm the width of your roof before purchasing. 70KG Load Capacity: Elevate your vehicle's carrying capabilities with 70KG load-bearing capacity. Now, you can effortlessly transport large items like luggage racks, surfboards, camping gear, mountain bikes, and skis, making your journeys smoother and more enjoyable. Thickened Anti-Rust Aluminum: Crafted from premium 6063-T6 aluminum, our roof rack crossbars are not only rust-proof and corrosion-resistant but also lightweight, ensuring they won't burden your car. Reinforced internal ribbing ensures long-term use without deformation or bending. Lock-in Security: Our crossbars roof rack comes with an anti-theft lock system and two keys. Once locked, it remains steady and secure, providing reliable protection against theft. Base and hook locks are made with rust-resistant materials for enhanced durability. Noise-Free & Vibration-Free: The aerodynamic aluminum tube design minimizes wind resistance and noise, while rubber pads on the mounting feet protect your vehicle from scratches and ensure a peaceful journey with no disruptions for you or your children. Note: Suitable for 4 or 5-door vehicles only. For items like kayaks, use a wind shield to reduce drag and protect the crossbar, preventing damage and falling.