The Dragon Skin+ Coated phosphor bronze mandolin strings upgrade your mandolin with big tone and outstanding tuning stability. This pack comes in and features 11-40 string gauges and patented Accurate Core Technology, which creates grooves in the string core, locking the wrap wire in place so notes ring out fully and clearly. A micro-thin coating provides a smooth feel and long life, while sounding like an uncoated string. The Dragon Skin+ strings are balanced, loud and exceptionally musical. The difference in tone and playability is instantly noticeable.