Feature 1: 100% plant-based treble strings Feature 2: Wound, silver-plated copper basses Feature 3: Emission is reduced by more than 50% Feature 4: The perfect combination of warm yet punchy tone Feature 5: Extra D-String included Tension: Hard Instrument: Guitar Gauge (Diameter): . 043w, . 035w, . 028w, . 041, . 033, . 029 Scale: 438- 650mm/17.24-25.60? Material: Silver Plated Copper/Plant Nylon Color: Silver/Clear Design: Silver Plated Copper & Wound E, A & D String/Plant Nylon Trebles Strings Made in: Italy