Thomastik - 637.015

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.
Set with D Alu (136/137/138/139).
Tension soft 18.
4kg/40.6lbs.
medium 20.
7kg.
0/45.6lbs.
22.
4kg/49.4lbs.