How to Set Model to WSF Polished

Maybe I'm just not seeing the setting, but how do I designate my purchase to be White, Strong, Flexible Polished. It only shows as White, Strong, Flexible, but I wanted it polished.

Thanks.
Charlene

Scroll down.

Usually WSF is the fourth in the material list... and WSFpolished is at the very end.

Hm... I have WSF as the first option, but still no WSF Polished. This is a my own model, I have seen the option show up before in the shop (for other products to be purchased). Does this mean there's an issue with my file?

Does it fit in the min & max bounding box?
Here are the rules
https://www.shapeways.com/materials/wsfpolished
Maximum bounding box: 150x150x150 mm
Minimum bounding box: 10x10x2 mm

Got it. I had two smaller bodies within one file. Was calculated as a needing a larger bounding box than necessary. Just split my files and the WSF Polished option came up.

Thanks everyone!
Charlene