Here is our very small offering of 7 string sets. If you are not happy with the gauging of any of these, remember that we do sell individually gauged strings in our Single Strings section. Many 7 string players simply take a 6 string set of their liking and add a .060 or larger single string to get the 7th. D'Addario EXL110-7 7-String NPS Light (10-56) $6.35 Ernie Ball 2621 7-String NPS Regular Slinky (10-56) $4.92