VEVOR Linear Rail Slide 2PCs 20mm x 1200mm Linear Bearing Slide Set with 4Pcs Block Bearings SC20UU+4Pcs Shaft Support Linear Shaft CNC Parts Kits for Electronic Equipment Guide Bar

VEVOR Linear Rail Slide 2PCs 20mm x 1200mm Linear Bearing Slide Set with 4Pcs Block Bearings SC20UU+4Pcs Shaft Support Linear Shaft CNC Parts Kits for Electronic Equipment Guide BarFine WorkmanshipHeavy-Duty MaterialComplete Linear Guiding SystemSimple InstallationQuiet OperationExtensive ApplicationRail Shaft Length: 47.2 in / 1200 mm,Rail Shafts: 2PCs Chrome Plated Shafts,Type: Linear Slide Rail Set,Bearing Support: 4PCs Fixed Support,Rail Shaft Diameter: 0.79 in / 20 mm,Material: Carbon Steel, GCr15, Aluminum Alloy,Bearing Blocks: 4PCs SC20UU