Guitar Monel (Electric/acoustic)Set 38201 9 42 MONEL Hex 9 11 16 24w 32 42 38207 9 46 MONEL Hex 9 11 16 26 36 46 38202 10 46 MONEL Hex 10 13 17p 26w 36 46 38203 11 48 MONEL Hex 11 14 18 28w 38 48 38204 11 52 MONEL Hex 11 15 22w 30 42 52 (Light Set) 38205 12 53 MONEL Hex 12 16 24w 32 42 53 (Traditional Light) 38206 13 56 MONEL Hex 13 17 26w 36 46 56 (Medium) 38301 9 42 MONEL Round Core 9 11 16 24w 32 42 38302 10 46 MONEL ROUND CORE 10 13 17p 26w 36 46 38303 11 48 MONEL Round Core 11