API Master Test Kit - Tube Drying(Revision 1)

Edit: This is revision 1. Revision 2 for the uprights and guides and revision 3 for the base soon. 

Holds the test tubes in place over a sponge to dry after cleaning.  Includes a template to help cut a sponge to size if you want it. I personally didn't use it, but it could be helpful. You will need two uprights and two guides, the rest of the pieces only need one.