I'm selling a brand new full set (EADG) of Swiss made Velvet Blue double bass strings. I bought 2 sets last year and realized I don't need the extra set. Retail cost is over $200/set if bought online or at a music store. No trades. These strings are very popular with double bassists and have great articulation, big volume, great sustain and equal tension on all four strings (approx 25kg per string.) Gauges - .060, .068, .086, .105