The strings are calibrated from 0.5 mm to 2 mm. The recommended position, starting with the longest string on the left side, is as follows: 2/1.8 /1.8 /1.6/1.6/ 1.4/1.4 /1.2/1.2/ 1.0/1.0 /0.8/0.8 /0.7/0.7 /0.6/0.6 /0.6 /0.5 /0.5/ 0.5. In the set you will find approx. 2 meters of strings per gauge. Tip: If a string tends to break systematically before reaching the desired note, replace it with a thinner string. This will make it easier to achieve the score.