Gold Line:  Latitude has finally found the plastic bend they've been working on for some time. They started with the same Opto Line material you know and love and added another kind of plastic to give better grip without sacrificing durability.  As a side effect, by throwing new kinds of colors in they've discovered some very cool and strange looks.  The look and feel of the new Gold Line is unmatched.

Here's a picture of Gold Line discs with a camera flash to give you an idea of the unique pearlescent look of the material.