The spinner hubcap was introduced into the commercial vehicle and passenger automobile market in the 1930s. Automotive designer Harley Earl expressed a brash philosophy behind his 1950s automobiles that included "glittering spinner hubcaps." During the 1950s and 1960s automobile manufacturers offered simulated wire wheel covers for a look of luxury that featured criss-crossing spokes designed to look like the real wire wheels that were used on vehicles in the 1920s and 1930s. These "spinner-wheel covers" were available on standard as well as featured on custom cars, and lowriders quickly adapted them for their own vehicles.