Martin M600 saprano/concert ukulele, ukulele banjo strings,

are clear fluorocarbon strings for louder brighter output they are less prone to stretch and so tuning is more stable. For soprano or concert tuning AECG on a 13" or 15" scale.

.0191"   .0256"  .0340"  .0216"

You can depend on Martin strings for tone brightness and clarity.