["Included: 2 x Linear shafts + 4 pieces SBR12UU + 4 pieces stop rings.",
"The shell is made of metal, durable for use, extending the life of the shaft and the machine.",
"The product surface is chrome-plated, beautiful and rust-free, more durable and has high hardness.",
"No stick-slip effect, less heating, less drive power required.",
"Used with an aluminum stop ring, it is more flexible, support rails made of aluminum alloy with pre-drilled holes are easy to install, requires no maintenance."]
