Features 1、Made of high quality phosphor bronze with eco-friendly and anti-rust coating, very solid and durable, ensure a long time use. 2、Delicate workmanship with good texture, make great tone, give you great playing experience. 3、Great for beginners and experienced guitarists, suitable for most sizes of guitar. 4、Colorful and beautiful colors, good replacement and decoration for your guitar. 5、An excellent gift for your family or anyone who loves guitar and music. Specification Made of high quality phosphor bronze with eco-friendly and anti-rust coating, very solid and durable, ensure a long time use. Delicate workmanship with good texture, make great tone, give you great playing experience. Great for beginners and experienced guitarists, suitable for most sizes of guitar. Colorful and beautiful colors, good replacement and decoration for your guitar. An excellent gift for your family or anyone who loves guitar and music. Type Diameter(mm / in) Color E-1ST 0.25 / 0.010 Silver B-2ND 0.36 / 0.014 Silver G-3RD(W) 0.58 / 0.023 Blue D-4TH(W) 0.76 / 0.030 Gold A-5TH(W) 0.99 / 0.039 Green E-6TH(W) 1.22 / 0.048 Red