Features: High strength circuits breaker lock enhances impact resistance by 300% compared to plastic alternatives, ensuring electrical safety for industrial and residential systems. Tool without installation through innovative flat base design enables 5 second setups without additional equipment, streamlining maintenance workflows in time sensitive environment. Essential for professional electricians, facility managers, and safety awake homeowners requiring reliable equipment for frequent electrical system maintenance. firmly for 0.5" 2" breakers in industrial control panel, residential circuits breaker box, and commercial electrical cabinets with universal compatibility. Weather resistant construction prevents accidental disengagement while meeting OSHA standards for workplace safety compliance across multiple breaker size. Specifications: Component : plastic Distance: about 1.2cm/0.47inch Package Includes: 1xBreaker Lock note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.