Light weight block: These linear blocks are small in size and light in weight, especially suitable for small equipment, which can bring you a good using experience. Lubrication system: The linear guide rail has a lubricating system and the lubricating oil can be easily put into the oil inlet on the side, which can be convenient for your use and experimentation. 4-point contact design: the miniature linear rail can bear load in all directions with 4-point contact design, and has good strength and high precision, hope you can meet your needs. Low Precision Interchange: The sliding rail guide is designed with ball retainer, which allows it to be exchanged in case of small precision, and you don't need to worry about the performance of this guide rail. Wide Application: This miniature linear slide block may be widely used for automatic equipment, precision measuring equipment, and many other machines which require precision linear motion.