Product description linear rail set sbr16-500mm sbr16-600 mm this linear rail kit is of 2 pieces of 500mm 19.7 Or 2 pieces of 23.6 In 600 mm long sbr16 rail shafts and 4 sbr16uu bearing blocks. Perfect combination of main axle and aluminum alloy support, which nicely stabilizes the original rail. Premier quality bearing blocks moves smoothly while using. 500Mm 600mm sbr16 linear rail kits high-quality steel material premier linear guiding system easy to assemble tough equipment & tools, pay less vevor is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, vevor is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, vevor's products are sold in more than 200 countries and regions with 10 million plus members worldwide. Why choose vevor premium tough quality incredibly low prices fast & secure delivery 30-day free returns 24 7 attentive service key features sbr16 linear rail kits linear rail kit includes 2 pieces of 500mm 19.7 Or 2 pieces of 23.6 In 600 mm long sbr16 rail shafts and 4 sbr16uu blocks. Corrosion-resistant, high strength, and wear resistance. High-quality material this bearing rail is constructed with carbon steel main axle and aluminum alloy support, gcr15 bearing steel linear rail block and aluminum alloy casing. High hardness & rigidity surface chrome plating treatment beautiful anti-rust, hardness can as high as hrc62, with high accuracy and strong durability. ...