[Histonet] cryostat adapter

[Leslie Chen]

Hello,
I have been trying to find a cryostat adapter for 6 months with no luck.
Does anyone know where I can find an adapter to hold plastic embedding rings
such as this:
http://www.emsdiasum.com/microscopy/products/histology/imaages2/62350__.jpg

We have a Leica and I've called Leica, called Thermo-Sci, Mikron, Wesco,
searched online, and I can't find it anywhere.  I know they exist because
the last two labs I worked in had these for their machines and none of the
reps can tell me how to get one.  Thanks!

Leslie