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.