The Bello Scientific Borosilicate 3.3 Glass Reagent Bottles are premium-quality, chemical-resistant containers designed for safe storage and handling of liquids, chemicals, and reagents in laboratories and research facilities. This pack includes 2 bottles each of 50ml, 100ml and 250ml, giving a convenient range for different storage needs. Each bottle features a leak-proof blue screw cap and a ground glass neck, enabling airtight sealing and long-term chemical stability.