Savarez 520R Rectified Trebles/Red Basses Classical Guitar Strings Set

Savarez 520R Rectified Trebles/Red Basses Normal Tension Classical Guitar Strings, Full Set
Normal tension (red card) Traditional basses.
Normal tension Rectified Traditional trebles. The trebles have an unpolished texture that aids in control and vibrato.

These are classified as normal tension, even though the package says