Item Type: Linear Guide_x000D_ Product Material: Stainless steel_x000D_ Product Model: MGN12H-200-1R_x000D_ Slider Size: Approx. 45.4 x 27 x 10mm / 1.8 x 1.1 x 0.4in_x000D_ Number of Sliders: 1Pc_x000D_ Slide Rail Size: Approx. 200mm / 7.9in_x000D_ Slide Rail Fixing Bolt Size: M3x8 1Come with a high?rigidity steel ball retainer to ensure safety during transportation and the slider is easy to assemble and use safely 2Miniature guide rail series adopts two?row ball circulation design, and the ball track design adopts Gothic structure 345 degrees contact angle, in order to achieve the effect of the square load. The surface hardness of the guide rail is HRC59.5 4Under limited space system, using larger size steel balls to improve the load capacity and fully demonstrate the high load and high torsion functions 5The miniature guide rail series are all made of stainless steel hardened heat?treated materials, whether it is a slide rail, a slider steel body, and a ball1 x Linear Guide