Set of 4 original flat chrome strings for double bass. ・Orchestral tuning. ・Used for 3 months by the previous owner + 1 week by me. I purchased them on Mercari, so I don't have definite proof of the previous owner's usage, but I believe they are in good condition. ・There are no frays or significant rosin buildup, except for the following: - The decorative thread on the part that wraps around the pegs shows some wear. - The E string has some fraying in the winding (see photo 2). This is around the peg area and shouldn't affect playing. On my instrument (106 cm string length), it's about 4 cm from the nut. Please be aware of this if you use a longer string length instrument, such as a 110 cm class. ・No original packaging. They will be shipped in a different string bag. ・I couldn't handle them well because the tension was too strong for my large 5-string bass, but I think they are good strings with a deep sound. They cost over 50,000 yen new, so why not give them a try? Please feel free to ask any questions. I will ship as soon as possible, but it may take up to a week depending on my work schedule. There are no pets or smokers in the storage environment.