The Rocket Solid As Cast is one of the coolest street rod wheels on the market! It was modeled after the original Indy 6-pin drive wheels of the 50s. Originally, six pin wheels were held on by a pressure plate and knockoff. The Solid Rocket re-creates the original pressure plate and knockoff attachment but with the capability of a 5-lug bolt on. If you're looking for a mag style wheel with durability and a one piece design, check out the Solid Rocket. All aluminum construction and raw finish with a clear coat on top make this the ultimate head turner for your roadster.