Shunyata Research Ztron Python speaker cable 3.5 m display model

I am retiring after twenty-eight years in the audio industry. In the last few months I have done an excellent job clearing out the last of my inventory. All I have left are two pairs of terrific speaker cables. How good are the Shunyata Zitron Python's? Good enough that I used a pair for a year before moving up recently to the new and substantially more expensive Sigma's. These were a display pair and have never been hooked up. They have banana's. Granted this is an expensive cable retailing for $3600. Then again these are on clearance so the reserve is extremely generous. I assure you there is nothing out there this outstanding at anywhere near the price these can be purchased at.
I understand everyone wants a bargain so be ready to jump up with glee if you are the winning bidder. The reserve is crazy low. Bid with confidence look at my feedback. Buyer pays paypal fee.