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

Suitable for heating, solution preparation, and short-term reactions in lab work Made of borosilicate 3.3 glass, resistant to acids, alkalis, and high temperatures; durable and reusable Round bottom ensures even heating, ideal for oil bath or heating mantle use Capacity: 250 ml; long neck helps reduce evaporation and minimizes splashing stonylab ensures premium products and premium customer service; If received damaged, please contact us immediately; We will solve it until satisfied