30mm Round Bottom Glass Test Tube with Cork Stopper, High Borosilicate, Transparent Vial.

This high-quality laboratory accessory is designed for precise and safe containment of various substances. Crafted from durable high borosilicate glass, it offers excellent thermal resistance and clarity. The tube's round bottom enhances stability and even heating, making it ideal for experiments and mixing processes. It comes with a natural cork stopper that ensures a secure seal, helping to preserve the contents. Its transparent design allows for easy observation and measurement, making it suitable for both professional and educational settings. Material: High borosilicate glass Use: Wenwan Storage Sealed Jar, Flower Tea Bottle, Kitchen Grain Storage Jar Specification: Capacity: 17ml Size: 30x40mm, Capacity: 23ml Size: 30x50mm, Capacity: 30ml Size: 30x60mm, Capacity: 35ml Size: 30x70mm, Size: 30x80mm Manufacture country: China Instructions included: No