Specification Brand : SUOFEILAIMU-PHONE CASE BulletPoint1 : Include:1PC BulletPoint2 : Aluminium BulletPoint3 : OD 19x25mm BulletPoint4 : 3/4/5/6/6.35/7/8/10mm BulletPoint5 : The coupling is a tool for connecting two different diameter shafts, which can be applied to various aspects such as 3D printer/toy/model puzzle materials or their own innovative DIY applications. ExternallyAssignedProductIdentifier : 8306048685936 ItemName : SUOFEILAIMU-PHONE CASE Metal Coupler 1PC 3D Printers Parts Aluminium for CNC Motor Jaw Shaft Coupler Flexible Coupling OD19 L25mm (Inner Diameter : 8x10mm) ItemPackageQuantity : 1 ItemTypeKeyword : beam-couplings Manufacturer : SUOFEILAIMU-US Material : Metal NumberOfItems : 1 PartNumber : SUOFEILAIMU-123 ProductDescription : 2 turns 3 is used for 2 mm to 3 mm axis, In turn, 3 to 2 is also the same. Each coupling delivers 4 screws, and each order is delivered with 1 wrench. ProductSiteLaunchDate : 2021-05-13T06:48:18.218Z Size : 8x10mm