Round core wires on the other hand must be wound with the utmost care in order to secure a uniform contact pressure to the nickel wire.
The Pyramid Nickel Classic strings therefore have a significantly improved vibration behaviour, which provides a very long decay of the string (sustain) and a uniform sound development.
Important: The wound strings cannot be simply cut because the nickel round wound would unravel immediately. First twist the string sharply and then cut the string behind the bend.