StonyLab Glass 250ml Long Neck Flat Bottom Flask, Borosilicate Heavy Wall Boiling Flask with Neck,

Commonly used in laboratories for solution preparation, liquid storage, gentle heating, and short-term reactions Flat bottom allows direct placement on hot plates, magnetic stirrers, or lab benches—no need for additional support Made of borosilicate 3.3 glass, resistant to acids, alkalis, and high temperatures; reusable and durable for repeated lab use Capacity: 250 ml; long neck design helps reduce sample evaporation and minimizes splashing stonylab ensures high quality products and premium customer service; If received damaged, please contact us immediately; We will solve it until satisfied