MMX harp string set - 29 stringsIntroducing the MMX harp string set 29 strings This set of 29 provides perfect spare strings for the equivalent MMX harp, working perfectly with both the natural and black versions. Made from nylon, they can be quickly reattached when one of your original strings is in need of replacement. We also offer 19 string, 22 string and 36 string sets, all designed to perfectly match our MMX Celtic harps. Ideal strings for harp learners Each string in the MMX