Price reduced from 25,000 yen to 22,800 yen. Please feel free to message me if you are interested. They have a rather sweet tone and a thick sound. I think it depends on the instrument, but they have a calm image, without the flashy feel of something like Spirocore. Compatible with spiral rope strings for double bass up to 110cm. The E and A strings were used in a hybrid setup with other strings, so the usage period was short, about 3 months. They are still very soft and flexible. The D and G strings were used for 5 months. It seems that the price of strings is increasing again due to the weak yen. If a transaction is made, I may temporarily remove the listing, but I may relist it again. - Brand: PETER INFELD - Instrument Type: Double Bass - String Type: Spiral Rope - Size: BASS 3/4 ORCHESTRA - Usable String Length: UP TO 110 CM - Number of Strings: Set of 4 Thank you for looking.