[Histonet] Heavy Sheet Protectors for slides????

[BSylinda <@t> aol.com]

Hello Histoland,
 
Is there anyone out there familiar with this product that acts like a sheet  
protector, but actually holds glass slides.   My pathologist is  positive that 
they are available, but I've searched vendor to vendor with no  luck.  If 
anyone has a possible source of what I've described it would be  greatly 
appreciated.
 
Thanks in advance,
Sylinda Battle HT ASCP