Magma Classical Guitar Strings High Tension Titanium Nylon - COATED Silver Plated Copper (GC120TED)SPECIFICATIONS Coated with a special material wchich makes strings last longer, 5 times than regular strings. Titanium nylon trebles, whose formula contains a percentage of titanium bioxide Silver copper wound basses Greater volume than traditional strings Excellent and unique balance between mellow and bright Stable and constant tuning Optimal intonation with defined and powerful basses Ideal tension, tone and bright combination Ideal for all musical