Product Category: String (Musical Instrument) Material: Copper PhosphorPackage: OPP Bag Origin: China Applicable Scene: Musical Instrument Color: Color String, Red Copper String, Brass String Types of Musical Instrument Accessories: Western String Musical Instrument AccessoriesMusical Instrument Accessories: Folk String Steps To Change Strings:1. All strings should be tuned to the standard tone first, and then to the full tone2. Tune them all to the standard pitch and then to the middle of the pitch3. Adapt to the standard tone Matters needing attention:1. You should start with the sixth string change and then tune in2. Tune from the sixth string to the first string in sequence. Do not put it in place at the same time3. The new string must adapt to the voltage and should be carried out step by step Reason for broken string:1. The string button is too sharp at the factory, which breaks the string, mostly on the first string2. The tone is too tight, higher than the standard tone3. Incorrect windings4. The string is not changed according to the correct method5. Wrong direction, repeated change of thrust, causing metal fatigue