For selecting the degree of hardness, note the following:

The Liebenzeller Metal Rosin is produced in the hardness I (hard) – VI (soft


            • For Violin I and II
            • for Viola II + III
            • for Cello III + IV f
            • or Double Bass V und VI

Basically: for solo playing the harder of the two specified hardness is preferred!

Before the first application of Liebenzeller Metal Rosin we recommend:

Clean your bow with a soft cloth and apply initially to little rosin!

Likewise, if you apply another rosin varieties - so the difference is apparent.