I have ordered from Pollendabber a number of times, including the micro centrifuge tubes and case. The compartments of my case are numbered 1-10 across and A thru J down. You can read the ID of each compartment on the bottom; for example, 6G or 8H etc. You have to be careful about taking more than one tube out if you don't have the tubes themselves labeled in some way; easy to get them mixed up then. Since there isn't much room to write on the tube I recommend writing its location id on the lid then keep a separate record linking that id to the cross.
Some of the other items I have ordered from this vendor are various types of labels and tweezers and little ziplock bags.
I like that he takes my check and quickly ships. The name of his business is Earth Star:
http://www.earthstarproducts.c...