Specification Brand : Tyenaza BulletPoint1 : Ideal Measurements: Boasts a size of L30mm x D25mm with a shaft diameter of 6.35 x 10mm, tailored for impeccable connections. BulletPoint2 : Sturdy Material: Crafted from aluminum alloy with a protective oxidation layer, offering resilience and an extended lifespan. BulletPoint3 : Efficient Elasticity: Plum-style shaft coupling diminishes vibrations and adjusts for potential misalignments effectively. BulletPoint4 : Smooth Rotation: Assures consistent performance in both rotational directions, facilitating a hassle-free connection. BulletPoint5 : Broad Compatibility: Suitable for a plethora of applications such as connecting servo and stepper motors, encoders, and various machine platforms. Equipped with screws for easy mounting. ItemName : Tyenaza Flexible Aluminium Shaft Coupling, 6.35mm to 10mm, D25 L30: Designed for 3D Printers, CNC Devices & Servo Motors ItemPackageQuantity : 1 ItemTypeKeyword : spider-couplings Manufacturer : Tyenaza PartNumber : Tyenazapm7o1kgehr ProductDescription : Description: Shaft coupler Often used to connect servo motor, stepper motor, encoder, screw driving, machine platform, etc. Shaft : Approx. 6.35 x 10mm / 0.3 x 0.4in Length: Approx. 30mm / 1.2in Diameter: Approx. 25mm / 1in Material: Aluminium