The Scienceware Mini-Tube System from Bel-Art Products, of Pequannock, N.J., is built around 1 ml tubes, which are molded in 12-tube strips. This design allows the user to load only the number of wells needed, up to 96, in the rack. The tubes can easily be separated when necessary with a pair of scissors. The system can be used in assay development, specimen storage or dilution. Mini-Tube Racks are available with covers and Mini-Tubes are made of virgin medical grade polypropylene.