AOD-III (11-OUD Strings) inch mm 1-G Clear Nylon .022 0.56 2-D Clear Nylon .028 0.71 3-A Silver-Plated Copper Alloy Wound .025 0.64 4-E Silver-Plated Copper Alloy Wound .029 0.74 5-B Silver-Plated Copper Alloy Wound .033 0.84 6-F Silver-Plated Copper Alloy Wound .041 1.04