It consists of two metallic rods(one rod is engraved in mMS) supported by heavy cast iron feet, provided with 4 metal riders. A) 4riders, 2 Slow Motions, Lens Holders, pins. B) -do- Superior quality. C) -do- Both rods covered with brass graduated pipes. D) -do- 150CM Long 0-128 A-Type E) -do- 150CM both rod covered with brass pipe. F) -do- Both S.S. Rod.