A Set of 50 Test Tube Without Rim 24×150- Boiling Tube.

Product: A Set of 50 Test Tubes Without Rim — 24 mm × 150 mm (Boiling Tube)
Quantity: 50 test tubes per set
Size: 24 mm (diameter) × 150 mm (length)
Material: Durable laboratory glass
Design:

Tube without a rim — smooth, straight-edged opening

Thicker glass wall to allow boiling of liquids directly over flame
Features:

Heat-, acid-, and base-resistant

Chemically inert — non-reactive with most chemicals

Easily cleaned and reusable
Suitable for: Chemistry labs, education, scientific experiments, boiling, and heating of solutions