Hannabach Strings for classic guitar Serie 827 High Tension Flamenco - Set of 3 Bass (8277HT)Strings for flamenco guitar Treble strings: orange red Precision Round Nylon Silver round wire wound and tarnish protected bass strings Made in Germany High Tension Diameter and tension: e 1: 0. 71 mm . 028", 7. 5 kg 16. 53 lbs h b 2: 0. 81 mm . 032", 6. 3 kg 13. 89 lbs g 3: 1. 02 mm . 040", 6. 5 kg 14. 33 lbs d 4: 0. 75 mm . 030", 7. 8 kg 17. 20 lbs A 5: 0. 93 mm . 037", 7. 6 kg 16. 76 lbs E 6: 1. 13 mm . 045", 7. 8 kg 17. 20 lbs Tension set: 43. 5