Specification AgeRangeDescription : adult Brand : ReliaBot BulletPoint1 : 350mm MGN12 linear rail guide with 2 Black MGN12C blocks BulletPoint2 : There are 2 red rubber stoppers to keep the block on the rail BulletPoint3 : Threaded holes of the block: 4-M3*3.5; center distance of the holes: 15*20mm BulletPoint4 : It is suggested to use M3 T nuts if you fix it to 20 series EU Al-profile BulletPoint5 : Come with 2 spare balls in the package for backup Color : Silver ExternallyAssignedProductIdentifier : 8754387868761 ExternallyAssignedProductIdentifier1 : 774388161157 ExternallyAssignedProductIdentifier2 : 0774388161157 ItemName : ReliaBot 350mm MGN12 Linear Rail Guide with 2 MGN12C Carriage Blocks for 3D Printer and CNC Machine ItemPackageDimensions_Height : 1.7 inches ItemPackageDimensions_Length : 14.9 inches ItemPackageDimensions_Width : 1.7 inches ItemPackageQuantity : 4 ItemTypeKeyword : 3d-printer-accessories Manufacturer : ReliaBot Material : Aluminum ModelName : 1005004522136528 ModelNumber : SK8 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : RZ004-350-2C ProductDescription : Packing list: 1 * MGN12 linear rail 350mm, 2 * black MGN12C carriage block ProductSiteLaunchDate : 2024-05-22T04:04:31.815Z Size : 350mm Style : Rail + 2 x MGN12C(Black) SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 24102000