Feature 1: Balanced tension for wound strings Feature 2: Clear nylon treble strings Feature 3: Wound, silver-plated copper basses Feature 4: Increased string vibration & resonance Feature 5: Crystal clear sound experience Feature 6: Hard tension Tension: Hard Instrument: Guitar Gauge (Diameter): . 044w, . 036w, . 030w, . 039, . 031, . 028 Tension in lbs: 14.99, 11.46, 11.68, 15.87, 14.77 Scale: 438- 650mm/17.24-25.60? Material: Silver Plated Copper/Clear Nylon Color: Silver/Clear Design: Balanced Wound, Silver Plated Copper E, A & D String Made in: Germany