Thank you for viewing. FERNANDES ZO-3 dedicated strings GSZ-500. Brand new, unused. These strings are specifically planned and developed for the ZO-3 scale. They cannot be used on other guitar scales. Due to long-term storage at home, there may be some string degradation, but they appear clean with no rust. Please refrain from purchasing if you are concerned about minor details. This item will be shipped via regular mail (fixed or non-standard). Please understand that we cannot be held responsible for the delivery status or any guarantees. *Please note that regular mail does not deliver on weekends and holidays, so it may take some time. *Please refrain from negotiating a discount on this product. Fernandes Zo-san Electric Guitar