Compact, sturdy bottle and vial rack is ideal for class settings as well as the lab. Holds dropping bottles, vials, scintillation vials and other containers up to 28-33mm diameter. It has 12 wells; 4 with open fronts for complete viewing of contents. It features a stable, heavy duty polypropylene construction and is heat and chemical resistant. It can be autoclaved at 121°C (250°F). It measures 10-1/2"L X 4" W X 2-1/8" H (26.7cm X 10.2cm X 5.3cm).