Brazilian Rosewood Ukulele Set. Back halves are 18.5" x 5.5" x 3/16"+. Sides are 18.5" x 2.75" x 1/8". More than enough to make a Concert Ukulele or possibly enough to make a Tenor Ukulele depending on your body size.
Kamaka, Koaloha, Kanilea, Martin, Collings, Santa Cruz