Unigrit 3" Sanding Discs

[BitterGreg]

What happened to these? It appears the 6" are still available, but not the 3". Is this a temporary issue or permanent?

Also I do my sanding of head lights by hand. How many uses do you guys get out of the sanding and finishing discs?

 

[Ebg18t]

I bought them at Napa.