spark plug extenders

I have installed an xdi ignition and have been selling my old parts to try and recoup some of my substantial investment. I am offering the 8 known good from my QV and the 8 spares I had bought. I have no reason to think the spares are not good. They look good but I sell cheap so there are no returns. 16 total. 10 dollars each shipped to the lower 48. all others pay actual cost. No handling fees. Buy all 16 for 125 dollars shipped to lower 48. all others actual cost. Thanks for your time. PM with your interest. next step e-bay