La Bella's Silk & Steel® sets are made with silver-plated copper wire, hand-wound over a middle layer of pure Italian silk filament and an inner steel core. Preferred by finger-style guitarists for their soft touch and sweet tone, these strings have less tension than standard steel, bronze or brass wound strings.- Soft touch and sweet tone- Tension: Medium- String Gauges: .012, .016, .025W, .033, .044, .056- Made in the USA with American Wire- Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness