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. 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 100% protection against theft. The mounting feet, made from PP material, promise outstanding toughness and zero rusting. Lightweight and Durable: 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 for long-term use, it stays resilient and won't bend or deform. 155 LBS Load Capacity: Elevate your vehicle's carrying capabilities with 155 lbs 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. Roof Rack Crossbar: Compatible Inner Distance Between Roof Gutters: 41.3-42.9 in/1050-1090 mm; Compatible Gutter to Window Distance: 2.4 in/60 mm. Our roof rack cross bars are designed to fit on a naked roof. No drilling is needed - the metal sheet can be adjusted to match your vehicle's roof perfectly. With the complete accessories provided, you'll have it up and running in just about 10 minutes! Note: Only for 4 or 5-door vehicles, not recommended for 2-door models.