What is a Pair of scales?

A pair of scales typically refers to a weighing device consisting of two plates or pans suspended from a central beam, used to measure the weight of an object by balancing it against known weights. Commonly associated with the concept of balance, these scales demonstrate the principle of equilibrium, where the weight on one side must equal the weight on the other for the scales to remain level. They are often used in various applications, including laboratories, kitchens, and markets.