Aquila Classical Guitar Strings
Aquila Zaffiro Superior Tension Classical Guitar Strings 137C
Normal tension
Trebles - Nylonplant -- a special variety of Nylon that is a 100% plant derivative
Basses - Silver-plated copper, wound on a multifilament core in Supernylgut
| Item # | Note | Gauge (in) | Gauge (mm) | Tension (lb) | Tension (kg) | Material |
| E/1st | .0283 | 0,72 | 18.07 | 8,2 | |
| H/B/2nd | .033 | 0,84 | 13.88 | 6,3 | |
| G/3rd | .0405 | 1,03 | 13.00 | 5,9 | |
| D/4th | .0279 | 0,71 ext | 15.65 | 7,1 | r |
| A/5th | .0358 | 0,91 ext | 17.41 | 7,9 | |
| E/6th | .044 | 1,12 ext | 16.09 | 7,3 | |