Good performance: This 3D printer coupler is anti-oil and has good electricity insulation and can work properly.Useful tool: This 3D printer torx coupler can absorb shock, and composite deviations in radial and shaft.Simple installation: This printing machine torx coupler is convenient to install and use and is a universal fit.Wide application: This flexible shaft coupling motor connector is widely used in lifting platform, 3D printer, stepper servo systems, and so on.Nice replacement: This aluminum alloy coupler is strong and sturdy, and is a good choice to replace a worn or damaged one.Specification:Material: Aluminum alloy.Color: Show as picture.Size: Show as picture.Note:There might be a bit of color distortions due to different computer resolutions.There might be a slight error due to different hand measurements.Package Includes:1 Piece Torx Coupler.