Specification Brand : Othmro BulletPoint1 : 8mm Diameter 450mm long Linear Motion Shaft BulletPoint2 : Case hardened for wear resistance BulletPoint3 : Chrome plated for corrosion resistance BulletPoint4 : Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it BulletPoint5 : Round steel shaft for use with linear support blocks and closed type slide units in linear motion applications Color : Mgn9c ExternallyAssignedProductIdentifier1 : 883432457471 ExternallyAssignedProductIdentifier2 : 888033432186 ExternallyAssignedProductIdentifier3 : 0888033432186 ExternallyAssignedProductIdentifier4 : 0883432457471 IncludedComponents : 1 x MGN9 linear guide rail and 1 x MGN9C track block, 6-10 replacement balls ItemName : Othmro 8mm x 450mm Hardened Rod Chrome Plated Linear Motion Shaft/Guide 1pcs ItemPackageDimensions_Height : 42.1894 centimeters ItemPackageDimensions_Length : 5.207 centimeters ItemPackageDimensions_Width : 7.62 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : linear-motion-guides Manufacturer : Othmro Material : Steel ModelNumber : OTH191102Z-0084 NumberOfItems : 1 PartNumber : OTH191102Z-0084 ProductDescription : The material is chrome plated carbon steel, which is very suitable for linear motion rod. The surface has been chrome plated to enhance the hardness. Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.