Autoclavable test tube stand, widely used in laboratories. This 6-place rack is end-supported by 2 columns for better visibility. The top plate features 2 holes for 25 mm dia test tubes, four holes for 16 mm dia tubes, and corresponding hemispherical wells on the base. It also includes six vertical pins for drying tubes. Another option available is a test tube stand with all holes capable of holding 25 mm dia tubes.