I've had this spinnaker pole sitting in my garage for over a decade. It came with my boat and I single-hand mostly - and setting a symmetrical spinnaker was not for me. So, it's just been gathering dust.
It's aluminum. 4 inch diameter with Harken hardware. One end is a socket end with a 7/8" opening on the socket. The other end is a regular heavy duty spring loaded 'piston style' end. Piston is 1/2 inch diameter. Cable runs internally. Opening with piston fully retracted is 1&1/8th inch (1.125).
This spinnaker pole is in very good condition. No dents at all. A little bit of corrosion on the coated cable in one or two spots.
I cannot imagine that shipping this is cost effective - however if you want to arrange it - I'll participate with a reasonable amount of effort. Even though the pole is located on the Outer Banks of NC, I travel to Winston-Salem area at least once a month and I could deliver it along that corridor with pre-payment.