The exclusive Mario Cortés cajons are highly qualified amongst professional cajon players. This new model ‘Bleu Sea' is completely handmade in wood of Finnish Birch with a double inner system of tuning connected to two keys, with 3 bells, bass string of resonance and the new bass tuning system. Its resonating top is made in 3 mm finnish Birch with Bleu Sea pattern, balanced and adjusted to the millimeter in the hexagonal design of this new model. The sound hole on the back can be fully closed or opened gradually to easily change the sound of the bass. Ideal for on stage and recordings. This ‘Blue Sea' projects a clear, cripsy sound with perfect balanced basses.