Made from standard borosilicate 3.3 s, ensuring durability and chemical resistance for laboratory use. Transparent brown devise allows for easy monitoring of contents while providing protection from light exposure. Resistant to high temperatures (up to 140℃) and thermal shock (up to 280℃), suitable for ​ and various experiments. Low coefficient of thermal expansion ensures stability during temperature fluctuations, minimizing the risk of breakage. Uniform wall thickness of 2.2 mm enhances strength and reliability, making it ideal for reactions and laboratory applications.