The Orphee-QA series string is for ACOUSITC GUITAR, it is very popular among musical lovers for its great tone, comfortable feeling and strong durability.Features:●The inner wire uses high quality high carbon steel hexagon core●The outer line uses 80/20 phosphor bronze winding● Smooth hand feeling / thick sound quality●Unique nano anti-rust coating treatment●string tail tail processing● Vacuum packaging, can be placed for 5 years without openingSpecifications:Brand: OrpheeModel: QA140/150/160/170/180Inside material:Hexagonal alloy Outside material:85/15 BronzePackaging:Paper boxInner packing:Vacuum packaging