This is a brand new 3M Flange Buffing Wheel Adapter with a 1\" OD to 3/4\" ID, 3M # 3 60-9887-0941-0. It is made in the United States and is perfect for use in buffing wheels, polishing, and abrasives. This adapter is ideal for use in CNC, metalworking, and manufacturing industries, and is a great addition to any business or industrial setting.