Laboware is presenting the product best in quality, In Test Tube Stand (wire Pattern), you will found an economical substitute for wire racks, when these submersible, autoclavable racks are empty could be stacked easily. Stands are made of special blend of Polypropylene by which they can stay in anxious water even after sink in it, you could have them in various colors. As stands are deconstruct able therefore, they can easy to clean and store with space saving feature. The base is in the form of a grid with square openings and has fold up sides and end bars that lock into rack tops.