Feature: 1. LARGE LOAD CAPACITY: The linear slider adopts four point contact design, can withstand loads from all directions, has smoother pushing and pulling, stable guidance. 2. EASY INSTALLATION: The linear slider has a compact size, easy to install and disassemble, convenient to exchange, ensures stable and reliable movement. 3. BEARING STEEL: The slider is made of excellent bearing steel with oxidized finish, has high hardness, wear resistance, and strong load bearing capacity. 4. G10Z4 STEEL BALL: Adopting G10Z4 high hardness steel balls, with multiple rows of steel balls, no jamming, low friction, low noise, and low resistance. 5. AUTOMATIC CENTERING: This slider has automatic centering ability, high locating accuracy, not prone to slipping deviation, which can achieve μm accuracy. Specification: Item Type: Linear Guide Slider Material: Bearing Steel Model: HGH30CA Rail Fixed Thread: M6x20mm Slider Fixing Method: Upper Locking Use: For linear motion of guide rail. Package List: 1 x Sliding Block1 x Accessory Note: The model of the slider and guide rail must be consistent, otherwise they cannot be combined for use.