The Vevor linear guide rail set is designed for CNC machines, automation equipment, and DIY projects that require smooth, accurate linear motion. It includes two 70.9" guide rails and four slide blocks for stable movement and dependable support. Built from high carbon steel and aluminum, the set offers durability, rust resistance, and long-term performance. Built-in ball bearings help reduce friction for smooth, low-noise sliding. Its precise machining and mounting design make installation and repeatable motion more reliable.