This is an Ohaus Model 8010-M dial spring scale, which is an inexpensive and rugged mechanical scale used for general weighing and force experiments.
Capacity: 100 grams (g)
Material: Constructed of shatterproof plastic and metal
Function: Designed to measure weight by observing how much the internal spring stretches when an object is attached
Application: Commonly used in classrooms, laboratories, and field studies