Strings in La Bella's Phosphor Bronze line have the brightest tone and longest life of any prosphor bronze strings, according to the company. La Bella credits its proprietary bronze and tin alloy for the great results.
La Bella introduced the Phosphor Bronze Series in the 1970s, and they're now the company's most popular acoustic sets. The 7GPT set is extra light tension.
The strings are made in the USA with American wire.
| Note | Gauge (in.) | Material |
| E/1st | .010 | Plain steel |
| B/2nd | .014 | Plain steel |
| G/3rd | .020w | Phosphor bronze |
| D/4th | .028 | Phosphor bronze |
| A/5th | .038 | Phosphor bronze |
| E/6th | .050 | Phosphor bronze |