Features: 1. Cast from bearing steel, the guide rail is of good wear resistance, high toughness and high hardness. 2. With ultra-low friction coefficient, it can reduce the friction to a large extent. 3. Designed with longitudinal groove on its surface, which is used to fix and guide the parts of the machine, instrument, etc. 4. It can achieve high precision linear motion in high load status. 5. Commonly used in automation equipment, precision measuring device, and many other machines that need precision linear movement. Specification: Model: LML15H Item type: Linear Guide Rail Material: Bearing steel Sliding block quantity: 1pc Rail size (L*W): 200*15mm / 7.9*0.6in Package Weight: Approx. 312g / 11.0oz Package list: 1 * Guide Rail 1 * Sliding Block