858 Graphics Inc, designs and fabricates mobile billboard trailers in San Diego, California. The Silverstep trailer is 1500lbs and supports two 6' x 12' Banners. The patent pending interchangeable graphic systems keeps the banners tensioned and allows graphics to be changed in under 15 minutes. This light weight trailer can be towed by almost any vehicle and registration and the California DMV is less than $20 per year.