Description:The two fixed ends are made of hard aluminum alloy and the middle is made of polyurethane elastomer, can absorb vibration, appropriate a large torque transmission.General-purpose power transmission coupling, also used in motion control applications and rotational power transmissions. Widely used in servo stepped motor, 3D printer, CNC, and encoder motor.Wear-resistant, high hardness and excellent response,high torque capacity.Simplifies the debugging difficulty.Specification:Package Content：2 x Flexible Shaft CouplersColor: Silver, RedMaterial: AluminumConnection Diameter: 5 to 5mm/0.2 to 0.2inchTotal Length: 25mm/0.98inchOutside Diameter : 20mm/0.79inchAttachment:Inner Hex Wrench.
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