Vintage Blue 1970′s Fiberglass Skateboard Fiber-Flexi Dyno GROOVY Vintage Blue 1970′s Fiberglass Skateboard Fiber-Flexi Dyno GROOVYVintage blue Dyno fiber-flexi fiberglass skateboard. Looks like it has been well used and loved over the years. One loose bearing and some chipping and dents. A nice piece of skateboarding history!