Aluminum Black Rooftop Bike Rack for 1 bike, with lockable system, universal for SUV, Van, Truck, Sedan, Coupe, etc. • Light weight ... Special adjustable clamp to fit bike in place.• Universal mounting hardware fits round, square and most factory OEM racks.• Lockable system ... ball mounts, trailer couplers, trailer connectors, bike racks, etc. Aluminum Black Upright Car Rooftop Bike Bicycle Rack Carrier