For those of you that live in a more modern neighborhood, where you don't have a properly sloped driveway apron for your low vehicles, here's a great solution! All it takes is 15 minutes to install these Curb Bridges and you can start enjoying drama-free, scrape-free exits and approaches to your driveway. Curb Bridges are made for curb and gutter style driveways and require no drilling into the curb or street. The angled ends permit approaches from any direction, too. A 2" channel on the underside permits water to pass through the Curb Bridge, while high flows of water are diverted around the ramp by the angled ends. When bolted together the ramps weigh from 120 to 170 pounds so they stay put. Solid enough to use on regular curbs for trailers, trucks or even RVs! Made of recycled tires that keeps them out of the landfills. (Do something great for the environment!) 11 feet long x 16 inches wide with a rise of 5 inches. Includes all the hardware for a long-lasting installation. Sorry about the extra shipping on this item. They're really heavy so your neighbor can't walk off with them!!! Sold in a set of three; add an Extra Bridge Section for wider driveways.