The Thule 688B Atlantis 2100 Rooftop Cargo Box updates a classic design that has been proven to work by the test of time. The Thule Atlantis 2100 is the largest box in the Atlantis line and provides massive storage capacity. The Atlantis comes pre-installed with a new QuickGrip mounting system so you'll be on the road in seconds, and mounts directly to most after-market and factory-installed roof racks. This cargo box not only lets you access your gear from either side of the car using Thule's patented Dual-Side opening feature, but is easy to open and close with an improved locking system that features a user-friendly, padded key and readable decal. And as always, Thule's built-in safety feature means that the key can only be removed when the box is fully closed, so you don't accidentally lock yourself out. The Atlantis has an eye-catching design, sleek black finish that compliments the aerodynamic lines of today's new car designs, measures 36 x 92.5 x 18 inches (W x D x H), and has a load capacity of 21 cubic feet. What's in the Box? 688B rooftop cargo box, 2 x straps, 4 x slide strips (pre-installed), 2 x keys, and instruction guide Manufacturer's Warranty Limited lifetime warranty