The GUANG YAO graduated glass storage jar is a versatile, high-borosilicate sealed glass container that combines professional laboratory material storage with everyday household and commercial organization. The jar body is crafted using an integrated high-borosilicate glass molding process, resulting in a transparent, impurity-free, bubble-free design that offers excellent resistance to high temperatures, acids, alkalis, and corrosion, ensuring outstanding storage stability. This product is available in three standard capacities: 250 ml, 500 ml, and 1000 ml. The jar features high-definition white, wear-resistant graduations for precise, intuitive readings, making it ideal for fine-tuned mixing, portioning, and sample retention. Paired with a blue spiral-seal lid, it provides a tight seal and prevents leakage when inverted, while effectively protecting against dust, moisture, and evaporation. Custom options include logo silk-screen printing, customized graduations, and personalized labe