Please ask any questions, confirm details, or make inquiries in the comment section before purchasing. I will respond within reasonable and practical limits. Please carefully review each image and understand the description before making your decision. Bundling with other items is welcome. This is the old main unit (pin-mounted type). I will also include the hardware for the old main unit (image 4, metal pin type), but it is a used item, so I cannot guarantee its safety. The instruction manual is not included. This is a used item, so it has a certain degree of wear and tear (small scratches, scuffs, sun fading, etc.). There is a small hole in one place (image 3). Size: Approximately 44cm wide x 4cm deep x 9cm high ・Please be aware of the following・ Returns after the transaction is complete and cancellations after the purchase process is complete are not accepted. Please keep this in mind. Even during various negotiations (price, holding, shipping method, etc.), I will prioritize transactions with those who purchase first. Due to the shooting environment, there may be differences in the actual color, etc. I may withdraw the listing without notice. After purchase, I may change the shipping method from Yu-Yu Mercari Delivery to Rakuraku Mercari Delivery. Measurements are taken by amateurs, so there may be slight discrepancies from the actual size. I will try to inform you in advance of any noticed defects, scratches, or stains as image information, but I may overlook them. Please refrain from considering or purchasing if you are particularly sensitive or have excessive expectations orこだわり (kodawari - particular preferences/fixations). I try to use recycled cushioning materials and cardboard, and I aim for simple packaging that does not affect the product. I am listing items with consideration and care, thinking from the perspective of a buyer. I hope that we can have a meaningful transaction for both of us and for the items themselves.