Choose the two shaft collars sizes/diameters you need for your project. There is a photo on this webpage that shows the different diameters of shaft collar clamps available to pair together; E.g. if you have a 1" shaft that you wish to pair together with a 1.5" shaft then you would need to choose Shaft Clamp #1 and #3.
We recommend that you purchase two of these assemblies for spanning and joining together longer pole runs.
Video Link(s):
Pole to Pole Link (for shafts from 0.875" to 1.52 inches in diameter)
$129.00Price