伸縮棒です。 It's an extendable rod. It extends in 4 stages. I think it's perfect for a cat teaser rod. This is what conductors used to attach flags to for "guidance" of train car numbers and buses at the Japan National Railways (JNR) / JR passenger centers and View Plazas. It's an unused item from that time, a dead stock item. It's a good item, please check the third image. Total length: 630mm