standard-medium tension nylon AEC trebles half set light tension nylon AEC trebles half set heavy tension AEC trebles half set Heavy Tension Black trebles AEC half set Silk Core Especiales trebles AEC half set medium tension #1 A/La light tension #1 A/La Heavy Tension #1 A/La Heavy Tension Black #1 A/La medium tension #2 E/Mi light tension #2 E/Mi heavy tension #2 E/Mi heavy tension black #2 E/Mi medium tension #3 C/Do light tension #3 C/Do heavy tension #3 C/Do heavy tension black #3 C/Do Silk Core #1 A/La Silk Core #2 Mi/La Silk Core #3 C/Do