Martin ukelele, ukelele banjo strings, baritone tuning EBGD, M630.
.0216" ." .0256" .0340"w .0350"w fluorocarbon strings, 3rd aluminium wound, 4th silver plated copper wound.
Fluorocarcon strings are less prone to stretch and so tuning is more stable.
Martin strings you can depend on for tone brightness and clarity.