Description: Iron Laboratory Chemistry Experiment Beaker Tube Clamp Gauze Mat Tripod Stand for Lab Supplies Made of iron, and high quality Used for teaching tool, lab equipment Color: Black Top Inner Diameter: Approx. 11cm / 4.33inch Stand Height: Approx. 15cm / 5.91inch Package Includes: 1 Tripod Stand Note: Due to the manual measurement, please allow 1-5mm differences in size