Complete Linear Guide Rail Kit: Includes two 1500 mm (59 in) HSR15 linear shaft and four bearing blocks. Smooth sliding design comes ready to assemble out of the box, ideal for small to mid-size machines needing longer travel Durable Steel Construction: This linear guide rail is made from premium bearing steel with high hardness, wear resistance, and fatigue strength. Handles long-term high-frequency motion with less wear, helping maintain accuracy Precision Linear Motion: Premier linear guide rail system delivers accurate straight-line movement with tight error control. Low friction reduces running resistance, lowers power consumption, minimizes wear, and improves motion stability Installation Made Easy: The linear guide rail and bearing blocks feature precisely pre-drilled mounting holes for common equipment. No extra drilling needed, just install with standard tools, beginner-friendly, and saves time and labor Wide Applications: This linear guide rail works with CNC routers, CNC grinding machines, industrial machinery printing, paper-processing, automatic machines, X-Y tables, factory automation equipment, etc