SOLUSTRE Experiment Flasks, Set of 3, with Stoppers, Conical Flasks, Heat-Resistant Glass, School Science Experiment Supplies, 5.5 inches x 3.3 inches

Heat-resistant and durable glass material: Made from odorless heat-resistant glass, this conical flask is ideal for heating experiments and is perfect for chemistry experiments and school students.

Transparent scale for accurate measurements: Measuring 14 x 8.4 x 8.4 cm, the clear markings make it easy to measure liquid volume, contributing to improved experimental accuracy.

Smooth and flawless glass finish: The smooth, rounded glass surface, free of bubbles and burrs, maintains a quality that is easy to handle and use.

Designed for student chemistry experiment education: The size and shape are easy for beginners to use, supporting experimental learning in schools and providing an effective educational environment.

Practical stopper for improved safety: Prevents leakage and splashing of liquids during heating and mixing, helping to ensure a safe experimental environment.