[TheForge] metal sanding sheet

[Jeff & Leslie]

I'm trying to find where to buy a sandpaper that is made of steel.  i think 
they advertise it as lasting 100 times longer than sandpaper.  The one sheet 
I found seemed to do that.  I found one seller that wanted something like 
$7.50 for one sheet.  Anyone familiar with this product?  I found it on 
google several weeks ago but now cannot and it's causing me to speak french.

Thanks,   Jeff in parched Tallahassee