Hannabach 900 MLT SILVER 200 Medium/Low monofilament. Set / Classical Guitar Medium Low TensionTrebles: Clear Nylon (precision round)Basses: SILVER 200 woundSeries900Silver 200 - Strings for the professional guitarist. Deliver a great intonation and a brilliant, powerful tone. The basses with its silver wire winding provide a protection against varnish. This extremely high silver-plating ensures a special longevity of the strings. With the reinforced dressing ends the strings keep quickly tuned. The precision round treble strings are made of nylon