Features:Thislinear rail and blockare small in size andlightweight, especially suitable for small equipments.Adopting 4-point contact design, it canbear load from every direction, and has good strength and high accuracy.Designed with ball retainer, which allowsinterchangeability in the case of small precision.Blockhaslubrication system; lubrication oil canbe easily put into the oil inlet on the side.Widely used for automatic equipment,precision measuring equipment, and many other machines that need precisionlinear movement.Specifications:Model: LML12BType: Slide railSlideTrack: Linear railRail Length: 100mm,150mm,200mm,300mm,450mm (Optional)Rail Width: 12mmMaterial: Bearing steelBlock FixationMethod: LockedWeight: 102~335g(approx.)Package Includes:1 xLinear Guide Rail 1 x LinearGuideBlockNote: Please allow small size error due to manual measurement. Thanks for your understanding..