durable, . String diameter (6 strings): 0.009 / 0.011 / 0.015 / 0.024 / 0.032 / 0.040 inches or 0.227 / 0.279 / 0.380 / 0.610 / 0.811 / 1014mm Suitable for electric guitar. Good tools to replace your guitar string. Material:steel colour:Silver Gauge: 150XL / 0.009 inch Length: . 95cm (1st and 2nd strings), 91cm (3rd string), 86cm (4th string), 82cm (fifth string), 80cm (sixth string) Package included: 6 x electric guitar Only the above package content, other products are not included. 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.