The Martin MQ26 & MQ56 guitar strings are high-quality acoustic guitar strings made by Martin Guitars. These strings are designed for acoustic guitars in the A series, offering excellent tone and playability. The MQ 26 & 56 model provides a balanced and bright sound, perfect for various musical styles. With a focus on durability and responsiveness, these strings are a reliable choice for guitarists looking for top-notch strings for their acoustic guitar. I am offering free shipping. See my other items.  Thanks for your interest.