Reusable and Environmentally Friendly:

Glass tubes are reusable, which reduces waste and is more environmentally friendly than disposable plastic alternatives.

Standardization:

The 4oz size is a standard volume in many industries, making the straight-sided glass tube a convenient option for those who need to work with this specific quantity.

Versatility:

The straight-sided glass tube can be used for a wide range of applications, including but not limited to serving drinks, storing samples, mixing chemicals, and conducting scientific experiments.