UP FOR AUCTION I HAVE A LOT OF 5 NOS BLACK DIAMOND D OR 4TH WOUND ON STEEL GUITAR STRINGS. THESE STRINGS ARE NOS, AND IN EXCELLENT CONDITION. I DON’T KNOW A LOT ABOUT GUITAR STRINGS, SO PLEASE ASK ANY QUESTIONS YOU MIGHT HAVE PRIOR TO BIDDING. PLEASE LOOK VERY VERY CLOSELY AT THE PICTURES, AS THEY ARE A LARGE PART OF THE DESCRIPTION. THANK YOU AND HAPPY BIDDING.