This is a set of 40 Y-terminal wiring cables for the practical exam of the [Sequence Control Work] skill test from Mechatro Kyozai-sha. I purchased these new a year ago, but I never had the opportunity to use them and they have been stored on a shelf. I've decided to sell them as I don't anticipate needing them in the future. These are ideal for practicing the skill test. ■ Y-terminal wiring cable specifications: ・40 cables: 【For Input】18 yellow wiring cables (wire numbers 1-18) 【For Output】18 blue wiring cables (wire numbers 20-37) 【For Power】4 red wiring cables ・Length: 80cm ・Screw size: 3.5mm ・Mark tube processing (with wire numbers) Multi-color wire set, with snap terminals, box storage. - Colors: Red, Blue, Yellow - Type: Wire - Terminals: Snap terminals - Storage: Boxed Thank you for looking.