Our Stock Design Roof Signs are a Bolt On Ready roof sign. The base and signs are laser cut from 12GA steel and powder coated Matte Black They all comes with a mounting kit plus our one inch tall 3/8-16 threaded stand offs for applications where you want higher clearance for straddling a roof bar. Material upgrades like Flourecents and chrome vinyls or reflective material as well as lower sponsor signs are additional.