10mm x14mm Aluminum Flexible Shaft Coupling Coupler Stepper Motor ConnectorSpecifications:Type: Flexible Shaft CouplingMaterial: AluminiumSize: 10mm x 14mmOutside Diameter: 30mmLength: 42mmFeatures:1) The structure is simple,easy to install,buffer,damping,convenient to disconnect.2) The size is complete and the surface is smooth.3) The elastic connection, you can absorb vibration, compensate radial, angular and axial misalignment.4) Shaft coupling Often used to connect servo motor stepper motor,encoder, screw driving, machine platform etc.Note:The size is refer to the hole,for example, 10x14mm is known as one head of the hole diameter is 10mm,the other is 14mm.Package included:1 x Flexible Shaft Coupling