Features:_x000D_ 1. This linear rail and block are small in size and lightweight, especially suitable for small equipment._x000D_ 2. It can bear load from every direction, and has good strength and high accuracy._x000D_ 3. Widely used in textile machinery, printing machinery, power tools, medical machinery, precision machine tools, electrical cutting, automatic recorders and office equipment._x000D_ 4. 1pcs HGR20-1000mm linear guide rail & 2pcs slide block set, can meet your using needs._x000D_ 5. Made of high quality bearing steel, solid and sturdy._x000D_ _x000D_ Specification:_x000D_ Product Name: Linear Guide_x000D_ Sliding track: linear guide_x000D_ Slide rail width: about 20mm / 0.8in_x000D_ Number of sliders: 2_x000D_ Linear size: about 1000mm / 39.4in_x000D_ Material: bearing steel_x000D_ Static load rating: 25.31_x000D_ Fixing bolt size: M4 * 16(mm)_x000D_ Allowable static torque: 0.17 (kn.m)_x000D_ Scope of application: Widely used in textile machinery, printing machinery, power tools, medical machinery, precision machine tools, electrical cutting, automatic recorders and office equipment._x000D_ _x000D_ Package list:_x000D_ 1 * HGR20-1000mm Linear Guide Rail_x000D_ 2 * Slide Block_x000D_ _x000D_ Note:_x000D_ 1. Please allow 1-2mm error due to manual measurement. Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.