Thomastik-Infeld Double bass strings Dominant nylon core - Set (197)The globaly recognized reference string, unmatched in sound and playability Flexible multifilament syntetic core Insensitive against humidity changes Soft sound, warm and rich in overtones, feel of gut Solo tuning. 3 4 size for scale 1040 1060mm (41 41. 7") Synthetic core, chrome wound, medium tension A: 27. 0kg 59. 5lbs E: 28. 0kg 61. 7lbs H B: 29. 0kg 63. 9lbs Fis F#: 30. 0kg 66. 1lbs Set 4 string 114. 0kg 251. 2lbs