Description: This slide rail and block set is made of high quality steel, durable for use. Exquisite craft, smooth surface, accurate performance, suitable for most automatic equipment. Features: Simple and easy to use. Beautifully design. High accurate and stable performance. Professional and technical slide rail and block, strong and durable. Small size, light weight, suitable for most automatic equipment. Slider could easily and lightly move. Specification: Material: Steel Type: Slide guide rail Slide track: Linear guide rail Slide rail length(Optional): Approx. 200mm / 7.9inch, 300mm / 11.8inch, 500mm / 20inch Accuracy level: H Slide block mounting method: Lock Weight: 59-129g Package List: 1 x Linear Guide Rail 1 x Slide Block 1、Simple and easy to use. Beautifully design. 2、High accurate and stable performance. 3、Professional and technical slide rail and block, strong and durable. 4、Small size, light weight, suitable for most automatic equipment. 5、Slider could easily and lightly move.