Specification Brand : ANWOKIT BulletPoint1 : COMPLETE LINEAR RAIL : Two 600 mm/23.6 long SBR20 rail shafts, and 4 SBR20UU blocks are included in the package. Smooth sliding blocks moving freely and fastly BulletPoint2 : PERFECT SLIDEING SYSTEM: With industrial-grade standard SBR block and a high precision linear bearing inside, the original rail set can be stabilized by rail axle bearing rail and aluminum alloy support BulletPoint3 : HIGH QUALITY MATERIAL: The linear rail made of good quality steel and aluminum alloy Surface chrome plating treatment to be anti-rust, high hardness and more durable BulletPoint4 : EFFORTLESS TO INSTALL: Aluminum alloy support rail with pre-drilled holes for ease of mounting. Stainless steel Linear optical axis guide bearings linear movement. Easy to install, no need for maintenance. 4 pieces SBR20UU Bearing Blocks afforded BulletPoint5 : VARIOUS USES: The linear rails apply for large-scale transmission equipment including industrial robots, cracker machines, supersonic cleaning equipments, solar energy and clothing supporting devices, etc Color : Silver ExternallyAssignedProductIdentifier1 : 730759436880 ExternallyAssignedProductIdentifier2 : 0730759436880 ItemForm : Rod ItemName : ANWOK Linear Rail SBR20-600mm/23.6inch Linear Slide Rail with 4PCS SBR20UU Bearing Block for DIY CNC Routers Lathes Machine ItemPackageDimensions_Height : 76.2 centimeters ItemPackageDimensions_Length : 8.89 centimeters ItemPackageDimensions_Width : 8.89 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular Prism ItemTypeKeyword : linear-motion-guides Manufacturer : ANWOKIT Material : Metal Material1 : Aluminum Material2 : Alloy Steel Material3 : Carbon Steel ModelNumber : 16LOWA20Z15U0Y NumberOfItems : 1 PackageLevel : unit PartNumber : K1481VVGX04UR18NCNQ ProductDescription : Features: Complete Linear Rial Kits High-quality Steel Material Premier Linear Guiding Syste Easy to Install