Savarez 520PI Traditional High Tension with Wound E, B & G Classical Guitar String Set Plastic Wound 1st, 2nd & 3rd Strings Rectified nylon SAVAREZ trebles and Traditional wound SAVAREZ basses. The name SAVAREZ brings to mind the famous 520R set with red, yellow and white cards, the set which made the Savarez name, a “best seller” yesterday and today ! When they came out, they allowed musicians for the first time to choose between three tensions: RED (Normal Tension) - YELLOW (High Tension) - WHITE (Low Tension). The Trebles... Savarez came up with a solution to a problem which nobody had solved before: how to give guitarists the means to play in tune and to choose the ideal tension for strings and guitar to give of their best. The rectification process created and then perfected by SAVAREZ has risen to this challenge. Now, “NEW CRISTAL” nylon represents the culmination of the technological progress of these traditional strings. The surface texture of rectified nylon limits finger slipping and improves the control of finger placing for greater playing comfort. The Basses... These basses have always been our best sellers, and are the fruit of thorough research into raw materials and manufacturing techniques. This research has been carried out in collaboration with musicians in searchof new sonic horizons. Both Basses & Trebles... They are checked with high-precision purpose-designed apparatus, kept up to date with each new wave of technological change (computers, high sensitivity stress gauges, laser beams, photoelectric cells etc.) Item # Note Gauge (in.) Tension (lbs.) Material 511R E/1st nylon wound 528R B/2nd nylon wound 529R G/3rd nylon wound 524R D/4th .0295 16.24 silverplated copper wound 525R A/5th .0339 14.54 silverplated copper wound 526R E/6th .0421 14.43 silverplated copper wound (SAV520PI)