The Eisco Labs Capillary Melting Tubes are a must-have for any laboratory, educational setting, or research facility focused on precise melting point determination and microscale experiments. Each tube, measuring 4 inches in length and with a wall thickness of 0.2mm, is meticulously crafted from high-quality borosilicate glass. This material is chosen for its superior durability, resistance to thermal shock, and minimal reaction with chemicals, ensuring the integrity of your samples. The tubes are designed with open ends for ease of access, making them not only simple to fill but also to clean, facilitating their reuse in various scientific applications. This pack of 100 tubes is an economical choice, providing a reliable supply for all your laboratory needs. Whether for educational purposes, quality control, or research and development, the Eisco Labs Capillary Melting Tubes offer reliability and precision for your most critical tasks.