The sport of roller derby was invented in 1936 by Leo and Oscar Seltzer. Shortly after, Oscar began producing and selling skates. First as the Aerflyte company and then under the name Roller Derby Skate Corp. From the beginnings of the Street King sidewalk skate and the first mass-produced skateboard, to the popular disco skates of the 70’s and the inline skating revolution in the 90’s, Roller Derby Skate Company has provided Americans with products for their favorite skating sports for over 80 years.