Features 1、This is a professional linear guide rail slide block with high durability and very strong 2、Slider lubrication setting make the lubricant can be easily put into filling port to lubricate 3、Widely used in automatic equipment, accurate measuring equipment, and many other machines require high accurate linear motion 4、Made of high class bearing steel material with good quality, durable for a long service life 5、Using advanced technology with fine workmanship to bring smooth surface, which provide perfect using effect for you Specification Item Type: Linear guide rail slider Material: Bearing steel Size: Approx. 110mm / 4.3in Sliding Track: Linear guide Slide Rail Width: Approx. 30mm / 1.2in Slider: 1 Package List 1 x Linear Guide Rail Slider