High-carbon steel hexagonal alloy inside material.Adopt 75% bronze and 25% phosphor outside material.Strong tightness offering excellent resonates, extra light tension.Strings arounded in 6 circles placed in a plastic bag.Good feeling, high glossiness, full tone. The strings of ORPHEE-TX series has strong durability, clearly timbre and feeling comfortable. For Primary guitar players.color: Gold yellow packagingModel: TX630 : /inch/mm: E/011/0.28; B/015/0.38; G/024/0.61; D/032/0.81; A/042/1.07; E/053/1.34Material: High carbon steel + phosphor bronzePackage Contents: 10 set* guitar Strings (6pcs/set)Only the above package content, other products are not included.Note: Light shooting 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.