The folks at TW might be able to tell you. It's kind of an odd duck, with a code of TGK291.1
I hated the look of the clear, and actually painted them flat matte black. It looks tons better, though some parts have faded slightly. Still, WAY better than the clear, IMHO.
I bought two additional sets, that I'll probably try dying black next time. Maybe that will take better and last longer.
If you find out of another set that works, I'd be happy to hear about it.