Features: _x000D_ This linear rail and block are small in size and lightweight, especially suitable for small equipments. _x000D_ Adopting 4-point contact design, it can bear load from every direction, and has good strength and high accuracy. _x000D_ Designed with ball retainer, which allows interchangeability in the case of small precision. _x000D_ Block has lubrication system; lubrication oil can be easily put into the oil inlet on the side. _x000D_ Widely used for automatic equipment, precision measuring equipment, and many other machines that need precision linear movement. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Model: LML7B _x000D_ _x000D_ Type: Slide rail _x000D_ Slide Track: Linear rail _x000D_ Length: 40mm/1.6in, 55mm/2.2in, 70mm/2.8in (Optional) _x000D_ Width: 7mm/0.5in_x000D_ _x000D_ Material: Bearing steel_x000D_ Accuracy Class: H_x000D_ Block Fixation Method: Locked_x000D_ Weight: 19g~27g(approx.) _x000D_ _x000D_ _x000D_ Package Includes: _x000D_ 1 x Linear Guide Rail _x000D_ 1 x Linear Guide Block _x000D_ _x000D_ _x000D_ Note: Please allow small size error due to manual measurement. Thanks for your understanding.