This beautiful Mexican Cocobolo Grand Concert Acoustic set not only boasts stunning shades of radiant colors but has also been dried to an impeccable moisture level of less than 7%. The result after finishing will be a combination of patina and colors that exude extraordinary quality. And as for the nice tap tone? It’s as nice as a bell, offering a sound as beautiful as its appearance. Variation 3.3 Sides Thickness 0.100"+(2.54mm+) Sanded                      Backs Thickness 0.130"+(3.30mm+) Sanded