Specification Brand : SUOFEILAIMU-PHONE CASE BulletPoint1 : Aluminum Alloy Diaphragm connect two side, can absorb most of the shake. BulletPoint2 : High quality diaphragm, with strong fatigue resistence BulletPoint3 : Low Inertial Torque, widely used in many high speed rotation occasions. BulletPoint4 : Zero rotation clearance, high sensitive, positive and negtive rotation are same characteristic. BulletPoint5 : Widely used in stepper motor, servo motor, CNC, and other high exactitude occasions. ExteriorFinish : Metal ExternallyAssignedProductIdentifier : 8306045363943 ItemName : SUOFEILAIMU-PHONE CASE Metal Coupler Plum-Style Jaw Shaft Coupling D25 L30 Flexible Coupler Bore 5-10mm for Motor Connector (Inner Diameter : 6.35mmx10mm) ItemPackageQuantity : 1 ItemTypeKeyword : multi-flex-couplings Manufacturer : SUOFEILAIMU-US Material : Metal NumberOfItems : 1 PartNumber : SUOFEILAIMU-123 ProductDescription : Product Information: Dimension: Out Diameter 25mm Lenght 30mm BoreSize:5*5mm,5*6mm,5*6.35mm,5*8mm,5*10mm,6*6mm,6*6.35mm,6*8mm,6*10mm,6.35*6.35mm, 6.35*8mm,6.35*10mm,8*8mm,8*10mm,10*10mm. You can select any size ProductSiteLaunchDate : 2021-04-01T06:29:08.181Z Size : 6.35mmx10mm