Features: For Rigid Flange Coupling Fixed Seat could make your shaft more stable. 45# Steel Material, Durable and Insulation. Easy to install and replace. Qty:4/8 Sets optional One set included: 1Pc Rigid Flange Coupling 1Pc mini wrench 2Pcs Screw Package included: 4/8 Sets 3mm-14mm Center Hole Flange Rigid Shaft Coupling Coupler Joint Connector.
eBay