I was setting up a rigging kit with everything 5/8 to concentrate on rigging cameras to cars and bikes.  I got ill and never completed my mission.  Selling off all my camera gear....

These are the top of the line 5/8 clamps , small flexible solid.

Takes (2) 5/8" rods and allows 360 positioning. Typically referred to as a mini grip head.

*any questions please ask...