These La Bella 7 course lute
string are packed in envelopes protected by a special Vapor Barrier
that will inhibit moisture contact with the strings. There are 13
strings in ten envelopes labeled as follows: 1st Single .017 TPN
containing 1 string; 2nd Unison .023 TPN containing 2 strings; 3rd
Unison .0265 TPN containing 2 strings; 5th Octave .018 AW containing 1
string 6th Octave .020 AW containing 1 string; 7th Octave .021 AW
containing 1 string; 4th Unison .017 SPW containing 2 strings; 5th
Fundamental .020 SPW containing 1 string; 6th Fundamental .025 SPW
containing 1 string; 7th Fundamental .0295 SPW containing 1 string
(TPN= Treble Plain Nylon; AW= Aluminum Wound; SPW= Silver Plated
Wound).