Ideal for science lessons and experiments, these Philip Harris narrow mouth conical flasks are designed for safe, accurate handling in primary, secondary, and college laboratories. Made from robust borosilicate glass, they are suitable for repeated use and heating, making them a reliable choice for teachers and students alike.

• Made from chemical-resistant 3.3 borosilicate glass

• Volume: 50ml; Height: 84mm; Neck diameter: 18mm

• Graduated with clear, easy-to-read white markings

• Uniform wall thickness for safe heating

• Pack of 12 flasks

• Bung Size: 17 - PP00054774 (solid), PP00054766 (1-hole)