The Klein Tools ET450 Advanced Circuit Tracer Kit is a black plastic circuit breaker finder designed for electric measuring technology. It features a digital LCD display, comes with a battery included, and has dimensions of 16.12 x 4 x 12.75 inches. This model, originating from China, weighs 6.43 lbs and is equipped with a California Prop 65 Warning. Ideal for troubleshooting and identifying electrical issues, this circuit tracer kit from Klein Tools offers convenience and accuracy for various home and workshop projects.