Product is no mistake. I think that the price is also about this. However, since the hole in the center is not opened, "Pulley does not have a hole when it is shipped", it is unsuitable to buy for the time being unfamiliar one who is unfamiliar is urgently needed. Later, you will have to drill additional holes yourself. It is difficult to buy directly from the manufacturer, it seems better to ask for additional processing at that time. Since the hole diameter is displayed on the table, it is supposed to make me think that it will open the hole, so I will assume the usage satisfaction is somewhat dissatisfied.