Features:
Hexagonal carbon steel core is used for inner wire.Nano Double-Coated Antirust coating treatment.
Adopt bronze and phosphor outside material. 
Strong tightness offering excellent resonates, extra light tension.
Independent single string package, suitable for acoustic guitar..
Good feeling, high glossiness, full tone.
Use Life is about 60-180 days.Strong durability, clearly timbre and feeling comfortable.
 
Specifications:
Model: Fire Lock Series T5/T6/T7
Material: Phosphor Bronze
Core: USA Made Hexagonal  Steel Core
Ball-End: 18K Gold Metal Alloy
Package :Paper  Box
Inner Package: Independent Single String Package
Package size: 12* 13 * 2cm / 4.7 * 5.1 * 0.4in
Package weight: 70 g / 2.5oz
 
Package List:
6Pcs/Set Acoustic Guitar Strings

Note:
The instrument showed in the picture is not included.