Linear Motion Rods 2PCS 8mmx 250mm (0.315 x 9.84inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide for 3D Printer, DIY, CNC - Metric h8 Tolerance

Linear Motion Rods 2PCS 8mmx 250mm (0.315 x 9.84inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide for 3D Printer, DIY, CNC - Metric h8 Tolerance

4 PCS 8mm x 500mm (0.315 x 19.69 inches) Vigorous Linear Motion Rods, Case Hardened Chrome Shaft Linear Rail Rod Shaft for 3D Printer, DIY, CNC - Metric h8 Tolerance

uxcell LM8UU Linear Ball Bearings 8mm Bore 15mm OD 24mm Length for CNC Machine 3D Printer 4pcs