These tampers are a non-trivial item, and can be quite hard to locate, 
particularly in a laboratory - and I've been in many like this - where the 
histotechnologist has no access to the catalogs locked up in the lab 
manager's office.

In one lab I worked in, we went from 25% to 90% of the length of a prostate 
biopsy actually getting on the slide, after we were able to obtain tampers.

Bob Richmond
Samurai Pathologist
Knoxville TN