Mechanical scales are devices used to measure weight without the need for electricity. They operate using a system of springs and levers, which translate the force of gravity acting on an object into a readable measurement. Common types include spring scales and balance scales, each designed for specific weighing tasks. These scales are often found in homes, kitchens, and laboratories due to their simplicity and reliability. Unlike digital scales, mechanical scales do not require batteries, making them easy to use in various settings. Their straightforward design allows users to quickly assess weight by reading the dial or pointer.