D'Addario EXL110 XL Nickel Round Wound Regular Light Specifications ■ Electric Guitar Strings ■ XL NICKEL ■ Nickel Round Wound ■ Regular Light ■ .010, .013, .017, .026, .036, .046 There are 18 sets in total. All are unopened. I was stocking these, but I am selling them because I quit playing guitar. All are genuine products purchased from musical instrument stores. Please consider them if you are interested.