The Bello Borosilicate 3.3 Glass Test Tube Combo Set is a perfect laboratory essential for schools, colleges, and research facilities. This complete kit includes 6 high-quality test tubes (15x125mm) made of durable borosilicate 3.3 glass, a plastic test tube stand, a holder and a cleaning brush for safe and efficient lab work. Each test tube is resistant to heat, chemicals, and thermal shock — ideal for mixing, heating, or storing small liquid samples. The stand giving stable storage, while the holder ensures safe handling during experiments. Designed for educational and professional use, this set supports precision, safety, and convenience in every experiment.