This is an item being sold because I imported a large quantity for personal use. Due to the rise in import prices due to exchange rates, this product is currently being sold for 850 yen, but it will be 880 yen from now on, so please purchase it as soon as possible. These are low-cost strings, but my personal impression is that they are better than the strings sold at a certain musical instrument store. I set them up normally on a Floyd Rose. The tuning was only slightly off the next day. They could be used without any problems as practice strings. Recently, prices have been rising, and it's becoming difficult to find good strings at a low price. I think these are a good product in terms of price and quality. Important notes: The strings are generally shorter. The 1st string is long, and the 6th string is short, so the 6th string was too short to wind on my reverse headstock (where the 6th string is furthest away). There were no problems with normal headstocks like Les Pauls and Strats. Please note that they cannot be used on reverse headstocks.