These are Purist Audio Design Maximus Speaker Cables, 6/FT. Silver (+) lead, Copper (-) lead. Sealed tube, with special outer jacket. Contains the special oil inside the tube. These cables are in excellent condition. Cables have been cryogenically treated. If you know anything about cables, you know all about Purist Audio Design. Now is your chance to own them. Smooth and open sounding tight fast paced dynamics. I have used these on my reference CARY Audio equipment for years. They are original from Purist Audio. The only change to the cables were new Upgraded Spades installed professionally from the supplier. Silver Coated Spades, thus an improvement above the 'stock spades'. I have 'two pairs' for bi-amping. These cables have a separate jacket per lead. Some of the new designs have a single jacket for both (+) (-) leads. These are separate for each, thus adding to the cables ability to isolate outside interference, and vibrations. One Pair constitutes a total of four cables, Red/Blue for left channel, and Red/Blue for right channel. There is a lot of cable here, thus making these cables a Great Bargain at the asking price. If you want Two Pairs/sets, you will be purchasing 8 cables (Bi-Amping). I hope this makes sense. The price is for ONE pair only. Shipping included in the USA main land. Paypal add $3.5% For Questions, firstname.lastname@example.org, Thanks!