Designed for vehicles with existing side rails no more than 50 in. apart, these universal fit Apex Aluminum Roof Crossbars clamp onto your rails and tighten in place using large easy-turn knobs. They feature a 150 lbs. weight capacity, perfect for carrying extra luggage and other equipment on your next adventure. The clamps also have a ribbed rubber insert for increased traction and stability during travel. Lightweight and rust-proof, these crossbars are a perfect accessory for your next road trip and can be used with cargo boxes, cargo bags and roof top carriers.