Features:Professional and technical rail and block, strong and durable.Adopting 4-point contact design, it can bear load from every direction, and has good strength and high accuracy.Designed with ball retainer, which allows interchangeability in the case of small precision.Block has lubrication system, lubrication oil can be easily put into the oil inlet on the side.Tiny and light weight, suitable for most automatic equipment.Specification:Rail Model: MGN9BType: Slide RailSlide Track: Linear RailRail Length: 150mm/5.9inchRail Width: 9mm/0.4inchMaterial: Bearing steelNumber of slider: 2Sliding Block Model: MGN9BSliding Block Fixed Mode: Locking typeWeight: Approx. 93g / 3.3ozPackage List:1 x MGN9B Linear Guide Rail2 x MGN9B Linear Guide Block