Calibrated weights are precision instruments used to ensure the accuracy of measuring devices, such as scales and balances. These weights are manufactured to specific standards and are often made from materials like stainless steel or brass. They come in various sizes and are marked with their exact mass, allowing users to verify that their measuring equipment is functioning correctly. Using calibrated weights is essential in many fields, including laboratories, manufacturing, and retail. Regular calibration helps maintain quality control and ensures compliance with regulations. By comparing the weight of an object to a calibrated weight, users can determine if their scale is accurate and reliable.