Proper skateboard wheels are made out of polyurethane with minimal additives. Toy skateboard wheels can be made of plastic or a low quality poly mix which leads to poor performance in the best case and even outright dangerous situations with cracked wheels in the worst case. This is a case where brand recognition and reputation can come into play.
In the early 1970s, Frank Nasworthy started to develop a skateboard wheel made of polyurethane, calling his company Cadillac Wheels. Prior to this new material, skateboards wheels were metal or "clay" wheels. The improvement in traction and performance was so immense that from the wheel's release in 1972 the popularity of skateboarding started to rise rapidly again, causing companies to invest more in product development. Nasworthy commissioned artist Jim Evans to do a series of paintings promoting Cadillac Wheels, they were featured as ads and posters in the resurrected Skateboarder magazine, and proved immensely popular in promoting the new style of skateboarding.
You know how people say shit like: Ernest Hemingway is “a writer's writer” and it's not really clear what that means, but you sort of get it? Well Anti-Hero is a skater's skate brand. Founded by underground hero pro skater Julien Stranger, Anti-Hero is a direct expression of his attitude towards the skate industry, which is basically that skateboarding is life and fuck everything else. Anti-hero has a reputation for being one of the gnarliest skate brands around, thanks in part to their team of heavies which includes John Cardiel, Tony Trujillo, and Chris Pfanner.