The Thule Complete Evo Clamp 710501 Car Roof Rack for Naked Roof-tops is Thule's newest design for vehicles with naked roof tops. The Thule Evo Clamp roof rack provides a superior, dependable fit on vehicles with smooth, gutterless, naked rooftops (without attachments or railings). A simple click-in attachment point on the Evo Clamp Foot allows you to insert and snap the fit kit clips into place in seconds. The Evo Clamp Foot uses a front facing adjustment mechanism which makes firmly attaching and positioning the bars easy and secure. The Evo Clamp Feet are safely secured to the vehicle using an ergonomic torque limiter key tool which clicks once the correct assembly tension is applied. The Thule 710501 Evo Clamp roof rack is the easiest, fastest and safest rack design available. The rubber padded Evo Clamp Foot rests on the roof of your vehicle. Thule's recommended load bar length will be provided unless otherwise specified at checkout. Thule's Evo Fit Kit securely attaches the Evo Clamp Foot Pack to the rooftop. Thule lock cores are recommended (sold separately).