1、Diameter of the round shaft has highly precise, which can ensure accurate matching every time and improve efficiency. 2、Simple and convenient to use, it can be used with clamping wheel load or aluminum clamping collar and other parts. 3、Made of stainless steel, high strength, wear resistance, durability, corrosion resistance. 4、Various models and sizes, 25mm, 50mm, 100mm, 150mm, many choices to meet your different needs. 5、Suitable for robots, engineering equipment, etc. as drive shafts or connecting rods, compatible with for Gobilda,for TETRIX,for FRC,for FIRST,for WRO Robots. 5 x Stainless Steel Round Rods  Item Type: Stainless Steel Round RodsMaterial: Stainless SteelModel Size:           Model     Length (mm)   4100-0012-0025           25   4100-0012-0050           50   4100-0012-0100          100   4100-0012-0150          150 Uses: Suitable for Robots, Engineering Equipment, Etc. As Drive Shafts or Connecting Rods, Compatible with for Gobilda,for TETRIX,for FRC,for FIRST,for WRO Robots