These are now discontinued Elixir Nanoweb coated mandolin strings. There are 3 new, unopened sets. They were 1580 yen per set at Soundhouse at the time. https://www.soundhouse.co.jp/products/detail/item/153210/ They are light gauge 10/34. .010 .014 .024 .034 Please note that they are unopened but in paper packaging. Please ask any questions in the comments. I am also selling various other items, so please take a look.