GHS Zakk Wylde Signature Series Boomers electric guitar strings, 010-060 gauge, ×2 sets. These are vintage items, so they are being sold as collectibles. We cannot accept any claims if they are actually strung on a guitar and used. (They are not rusty, so they can be used) Also, the outer packaging is not perfect, with some warping and small tears, so please be aware of this. When I was actively using them, I used to put them on a Les Paul and tune it to Drop B. - Brand: GHS - Model Name: Zakk Wylde Signature Series Boomers - Gauge: 010-060 Thank you for looking.