2-Pack 5mm to 8mm Flexible Shaft Coupling 25mm Length 20mm Diameter Stepper Motor Lead Screw Coupler Aluminum Alloy Joint Connector for 3D Printer CNC Machine DIY Encoder (OD20 x L25mm 5x8mm) OD20 x L25mm 5x8mm workwarehouse USA customer service

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2-Pack 5mm to 8mm Flexible Shaft Coupling 25mm Length 20mm Diameter Stepper Motor Lead Screw Coupler Aluminum Alloy Joint Connector for 3D Printer CNC Machine DIY Encoder (OD20 x L25mm 5x8mm) OD20 x L25mm 5x8mm workwarehouse USA customer service2 Pack 5mm to 8mm Flexible Shaft Coupling 25mm Length 20mm Diameter Stepper Motor Lead Screw Coupler Aluminum Alloy Joint Connector for 3D Printer CNC Machine DIY Encoder (OD20 x L25mm 5x8mm) Package: 2pcs Product Features Suitable for 3D printer and other machine which uses shaft 5mm to 8mm 0. 19 to 0. 31 inch it also can be used with other 3D printers and CNC machines which are using 5mm shaft motor to 8mm lead screw. Size: 25x20mm 0. 98x0. 79inch(