From Martin:

"With the 000-12E Koa in Martin’s lineup, now more players can turn their dreams of owning a koa guitar into reality. The back and side of this gorgeous model are constructed with koa fine veneer, which is an environmentally conscious, alternative-wood option, made by bonding koa hardwood to an African mahogany core. The result is the show-stopping look of a koa guitar at a great price. But there is so much more to this guitar. Aside from the balance and comfort of the 000, you will get mother-of-pearl-patterned rosette and fingerboard inlay, a full-gloss body, a soft-shell gig bag, Martin E-1 electronics, and Martin’s Authentic Acoustic Lifespan® 2.0 strings. With all that, the 000-12E Koa is worthy of any stage."

Natural, Gloss top and body finish, 000-14 Fret body shape, Sitka Spruce top,  Mother of Pearl pattern w/multi-stripe Rosette, Scalloped X bracing, Koa fine veneer back and sides, Black binding with the multi-stripe top inlay, FSC certified Richlite fingerboard with the Mother of Pearl pattern Style 28 position markers on a performing artist w/high performance taper shaped select hardwood neck, 24.9″ scale length, 1 3/4” nut width, With the Martin E-1 pickup system and soft case