Specification Brand : CHANCS BulletPoint1 : Hexagonal Coupling Connector Material: quality brass, well wear resistance. sturdy and durable, you can use them for a long time BulletPoint2 : Size: the cylindrical inner diameter is 7 mm, the total height is 18 mm, Any motor with a shaft diameter of 0.275''/ 7mm is supported. please see the picture for other specific size BulletPoint3 : Package Include: 6pcs High precision Flexible Coupling Connector.,2 x Allen Wrench,12x Screws easy for you to assemble motors,a toy car or a robot BulletPoint4 : Wide application: hexagonal flexible couplers are widely used to connect motor shafts and hex wheels, shaft coupling for DC motor car tire motor connection they are commonly used in robots, toy cars, etc. BulletPoint5 : If you need a synchronous motor that matches the coupling, please search for CHANCS, we will provide you with high-quality motor products and professional services. DriveSystem : External Hex ExteriorFinish : Brass FinishType : Brass ItemName : CHANCS 6 Pieces 7mm Motor Flexible Coupling Coupler Connector for Car Wheels Tires Shaft Motor Accessories ItemPackageDimensions_Height : 9.2 centimeters ItemPackageDimensions_Length : 4.9 centimeters ItemPackageDimensions_Width : 8.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : spider-couplings Manufacturer : CHANCS MOTOR Material : Aluminum Material1 : Copper Material2 : Brass MetalType : Aluminum MetalType1 : Copper MetalType2 : Brass ModelNumber : Coupling NumberOfItems : 1 PartNumber : FC1530717 ProductDescription : Hexagonal Coupling Connector Type: 7MM 6 pcs brass material 7mm length hexagon motor flexible coupling Coupler copper shaft coupling for the automotive tires DC motor robot car Wide application: hexagonal flexible couplers are widely used to connect motor shafts and hex wheels, shaft coupling for DC motor car tire motor connection they are commonly used in robots, toy cars, etc. Package Include: 6x Shaft Motor Flexible Coupling Coupler, 2 x Allen Wrench, 12x Screws ProductSiteLaunchDate : 2020-06-01T07:00:00.000Z Size : 6PCS Style : 7mm SupplierDeclaredDgHzRegulation : not_applicable