This is a current pair of 20 foot Transparent Balanced MusicLink Super Premium Balanced Interconnects with MM2 technology and XLR ends, serial number 6052MM2. They are complete with the original box and paperwork and are in very good condition with no snags on the black netting and just a few marks on the networks and connectors (unavoidable!). Transparent cables always have very extended dynamic range and quite backgrounds. They have been my preferrence for many years now and always let the equipment and music shine through without any 'tone control' effects. Highly recommended! I am selling these because my amp and preamp are in the same rack now and I am using shorter cables.