Specifications: Diameter: 8mm / 0.31"; Length: 380mm / 14.96"; Material: Bearing Steel Material: The linear motion bar is made of ball bearing steel and coated with anti-rust oil to ensure excellent durability. The surface is chrome-plated, which improves hardness and provides excellent resistance to rust and corrosion. ⭐Anonymous Delivery & Free Shipping⭐ Please check the actual photos for the product condition♪ #♡nao♡ Click here for a list of products ✨☜ Chamfered Design: The chamfered ends are specially designed to facilitate the installation of bearings, providing convenience during the installation process. Installation: Gather the necessary tools and materials, and select a suitable installation location that meets the design specifications and space constraints. Insert the linear motion rod into the bracket and ensure smooth sliding. Bolt both ends to the base or bracket. Finally, attach the bearings to the rod. Wide Range of Applications: This linear rail set is widely used in 3D printers, CNC machines, automatic machines, injection molding machines, engraving machines, etc. uxcell 2pcs Linear Motion Rod 8mm x 380mm (0.31 x 14.96") Case Hardened Chrome Plated Linear Rail Shaft Round Guide for 3D Printer DIY CNC #uxcell #2pcs #LinearMotionRod #8mm x #380mm #0.31 x #14.96" #CaseHardenedChromePlatedLinearRailShaft #RoundGuide #3DPrinter #DIY #CNC #AutomaticMachines #InjectionMoldingMachines #EngravingMachines so34-44 0482 ....