Made from standard borosilicate 3.3 s, ensuring durability and in laboratory . Transparent brown devise allows for easy monitoring of contents while providing protection against U-V light. Resistant to a wide range of chemicals, including acids, alkalis, and organic materials, making it ideal for various experiments. High temperature resistance allows for ​ at 140℃, ensuring a clean and safe environment for reactions. Uniform wall thickness of 2.2 mm minimizes the risk of breakage and enhances the longevity of the device.