Professional Roller Derby league / Professional Roller Skating on a banked track and or flat track; The league will consist of (said number of teams)with names and logos under the GRDA only; Within the GRDA any and all advertisment ie-- TV shows, liknesses, action games, computer games, clothing, cartoons, action figures, magazines, trading cards,scrapbook albums, autograph books, arts and crafts kits,paper and party supplies, loose leaf binders, posters, children's coloring and activity books, playing cards, sound tracks,decals, bumper stickers, pictures, any and all instruction manuals, any and all items under the GRDA teams or logos or the GRDA its self