Thank you for viewing. This is the Gakken Electronic Block EX-150. It's not a reproduction, but a valuable original from back in the day. All accessories are included. Please check the condition in the photos. There are no noticeable scratches, and the condition is good considering its age. There are notes from the previous owner in the instruction manual. I tested its operation by assembling a few circuits, and they worked. I haven't tested all the circuits, but please understand that some may not work due to its age. This is a rare original item. How about it for your collection?