Luomorgo 4 Pcs 6mm/1/4 inch Metal Flange Shaft Coupling Rigid Flange Coupling…
Product Contain: 4 x 6mm Flange Coupling Connector, 4 x Fastening Screws, 1 x Mini Hex Wrench. Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily.