Features: This linear rail and block a re small in size and lightweight, especially suitable for small equipments. Adoptin g 4-point contact design, it can bear load from every direction, and has good strength and high accuracy. Design ed with ball retainer, which allows interchangeability in the case of small precision. Block h as lu brication system; lubrication oil can be easily put into the oil inlet on the side. Wid e ly used for automatic equipment, precision measuring equipment, and many other machines that need precision linear movement . Specifications: Mode l : LML12B T ype: Slide rail Slide T rack: Linear rail Rail Length: 100mm,150mm,200mm,300mm,450mm (Optional) Rail Width: 12mm Material: Bearing steel Block F i xation Method : Lo cked Weight: 102~335 g(approx.) Package Includ es: 1 x Linear Guide Rail 1 x Linear Guide Block Note: Please allow small size error due to manual measurement. Thanks for your understanding. .