Yes, we just started using these too at our microtome and embedding stations. 
 They can be purchased at Pacific Southwest in white or blue and different 
sizes.  We use white since paraffin is and so far they are working out nicely.

LaDonna
_______________________________________________
Histonet mailing list
Histonet@lists.utsouthwestern.edu
http://lists.utsouthwestern.edu/mailman/listinfo/histonet