Test Tubes in Wooden Rack - Lab Equipment Illustration #254447 (License: Personal Use)

This illustration depicts three standard cylindrical glass test tubes, each partially filled with a light blue liquid, mounted in a two-tier wooden rack. The rack features vertical supports connecting upper and lower platforms, providing stable organization for laboratory work. The clean, schematic style makes it suitable for educational diagrams, safety manuals, or introductory chemistry content.

Commonly used in educational websites, science textbooks, lab procedure guides, and STEM resource pages to visually represent basic lab equipment setup. Matches user intent for learning about lab organization, preparing for experiments, or identifying common apparatus.