This is a pack of TQ Racing 11 gauge wire in black, 3' in length. 

TQ11 is constructed from 2,303 strands of bare copper in a super thin silicone jacket. The wire is only 4.2mm OD – providing a larger conductor in a compact space. Thinner than your “average” 12 gauge wire, it has more copper, allowing for increased current flow and lower voltage loss.