This is a complete set of materials needed for practical exam preparation. For practical exam preparation, you must practice wiring the 13 types of circuits beforehand, or you will not be able to pass the exam. - Parts: A complete set of electrical components - Accessories: Wiring, terminals, switches, circuit breakers This is a full kit containing all the materials needed for the exam. I purchased it last year for 17,800 yen. As a bonus, I'm also including a HOZAN Pass Grip (1000 yen). Recently, the price of materials has skyrocketed, making it difficult to gather the necessary supplies. Please use this set to practice wiring and prepare for the exam. You will definitely pass.