500 Plastic has been in development for quite some time, formulated and based on carefully considered player feedback. It has a stiffer, less gummy feel than 400 Plastic. This provides an extremely confident grip on the flight plate, balancing just the right amount of flex and firmness, with a very solid feeling rim that we believe disc golfers are going to love. 500 Plastic has a uniquely pearlescent finish, unlike anything else in the Prodigy Disc plastic line.