Smoothly move your microscope back and forth on this heavy duty ball bearing stand.  Solid metal construction with chrome finish anchored by a heavy table base plate.  Vertical arm is 380mm and the horizontal arm is 530mm.  Anti-slip collar.
Focus mount:  Centerline to centerline 6 inches from the fitting to head ring. Focusing controls with 54mm movement.
Weight with microscope is about 55 lbs.