Proper Test Tube Handling Technique - Lab Safety Guide #3586874 (License: Personal Use)

The image shows a right hand gripping a standard cylindrical glass test tube, with the thumb positioned on one side and the index and middle fingers wrapped around the opposite side near the top. The ring and pinky fingers support the tube from below, demonstrating a stable, controlled hold commonly taught in laboratory safety training. The shading lines indicate the tube’s transparency and cylindrical shape, reinforcing its identity as standard labware.

This image is typically used in educational science resources, lab safety manuals, or introductory chemistry/biology course materials to illustrate proper handling technique for test tubes, matching user intent to learn safe lab practices or prepare for practical exams.