Premium product: The glass test tubes are made of heat-resistant borosilicate glass.
Features: The transparent test tubes with caps have good sealing performance, can be reused, solid, harmless and light weight.
Use: They can be used to store liquid, bath salts, powder, candy, sample, beads. Transparent test tubes are suitable for various scientific experiments, planting plants, holiday party and home decoration.
Specification: You will receive 30pcs 25ml clear flat glass test tubes with cork stoppers. Color: clear. Volume: 25ml. Material: heat-resistant borosilicate glass.
Features: Have a good seal. Suitable for torage of candy, sample, liquid etc.