You will love the LandWave ramps because they are the only ramps in the world you can build longer, wider, and higher. Combine them with LandWave Decks (available separately), and you will have the newest, hottest plastic ramp system ever introduced. It is the world's only ramp that you can build as large as you dream! By combining many LandWave Ramps and Decks, you can create a ramp as high or wide as you want (bottom picture shows a tower made with many ramps and decks. You can assemble yours in thousands of different ways. The LandWave ramp is a flat-bank design so it can become one long smooth ramp when stacked. LandWave is designed to withstand 300 lbs., comes with rubber feet to make it stay put, and has a rough surface to give you great traction with skateboards, skates, or bikes. Dimensions are 28 in. wide by 38.5 in. long by 12 in. high. Unboxed weight is 13 lbs.