Vehicle Fitment : Our roof rack cross bars are compatible for cars with flush & raised side rails. Please check your vehicle's roof measurements before purchase. Adjustable Cross bars : The length of the bars can be adjusted from inches to 47 inches, allowing for flexible spacing between the two bars to meet different loading needs, such as cargo baskets, kayak racks, and more. Note : We do not recommend transporting long items such as surfboards, skis, or kayaks, due to significant wind resistance and safety risks. Use professional racks instead. If you must transport these items, ensure all devices are securely fastened for your safety.