Aluminum mounting plate. Used item. Mounting hole spacing: Horizontal: Approximately 100mm Vertical: Approximately 70mm Shaft diameter: Approximately 22mm There are some scratches, but there are no functional problems. No cancellations or returns accepted. Shipping is planned via Yu-Yu Mercari Delivery (Japan Post), but may be changed to Raku-Raku Mercari Delivery (Yamato Transport).