Weighing glasses (glass pants), Zaporizhia region.

Weighing cups (glass pants).
Bux is a specialized vessel designed for weighing materials, samples, samples under controlled conditions. Ego is also called a "weighing cup". Pants are made of glass or aluminum. As a rule, these are small vessels, wide and low, very stable on horizontal surfaces.

Field of application of laboratory trousers:
(//tractor-service.com)
weighing materials or substances;
drying of samples, samples;
storage for further research;
long-term storage of substances that can change their chemical composition when interacting with the environment;
safe storage of volatile and dangerous (toxic) substances due to hermetic sealing.
The products are used in industry, agriculture, in research, expert, medical and forensic laboratories.