DR Strings DDT : Drop Down Tuning Electric 7 St Ex Heavy

DR Handmade Strings DR DDT : Drop Down Tuning 7 St Ex Heavy Electric Guitar Strings (DDT7-11)

JIM DUNLOP Heavy Core Korn Guitar Strings 10/65-7/Set (KRHCN1065)

Ernie Ball 7-String Skinny Top Heavy Bottom Slinky Nickel Wound Electric Guitar Strings, 10-62 Gauge (P02615)