Description 6mm Flange Coupling Optical Axis Support Fixed Seat Steel Rigid Flange Plate Shaft Connector Specification Material SteelInner Hole Size 6mmOuter Diameter 10mm 22mmTotal Height 12mmScrew Size M3Quantity 1pc Features 6mm Flange Coupling Rigid Flange Disc Shaft Couplings Optical Axis Support Fixed Seat Easy to install and replace Durable and insulation This seat could make your shaft more stable Package Included 1pc x 6mm Flange Coupling Notice 1 Please allow a bit error due to manual measurement please make sure you do not mind before you bid 2 The color may have different as the difference display pls understand More Details