These small, often brightly colored tags serve a critical safety function in aviation and other industries. Typically attached to components like covers, pins, or safety devices, they act as a prominent reminder to remove a safety element before operation. For example, a tag might be attached to the pitot tube cover of an aircraft, ensuring its removal before flight to allow for accurate airspeed readings.
Their simple yet effective design minimizes the risk of human error, preventing accidents caused by overlooked safety procedures. Historically rooted in the aerospace industry, this practice has expanded to other fields requiring strict safety protocols, like manufacturing and maintenance. This visual cue contributes significantly to operational safety and procedural compliance.