Long service life. Tunes stable, sounds great. Suitable for acoustic guitar. Make you guitar more perfect. Good tools to replace your guitar string, good gift for guitar beginner. Material: copper, with rustproof coating for use. Suit for: colored guitar strings are helpful for the guitar beginners to remember and practice. Quantity: 6 Pcs in 1 Set. String Length: E String (1st): 88cm(.) B String (2nd): 88cm(.) G String (3rd): 90cm (.) D String (4th): 90cm(.) A String (5th): 85cm(.) E String (6th): 85cm(.) Colour: Material:copper style:A strings Package Contents: 10 Set * Guitar Strings Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.