RS Coupler 6.35x8MM

From the shop's description

RS Coupler 6.35x8MM is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. 3D Printer parts Flexible Coupling Coupler /Shaft Couplings 5*8*25mm Flexible Shaft Aluminum 3D printer Accessory Shaft coupler Often used to connect servo motor, stepper motor,Encoder, screw driving, machine platform, etc Length:25mm. Diameter:20mm, Total Size : 20 x 25mm / 0.8″ x 1″(D*H) Color : Silver Tone Weight : 18g Material: Aluminium It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.