The case, made with cement and wood, is also an original piece with exclusive design, an sturdy well-made and non-perishable object. Each of them is made in an artisan mold with cast concrete, load of white impalpable marmoline and powdered pumice stone. Colored cement with black pigment. Each piece is unique and may be a little different in color and texture of the surface due to the variable properties of concrete.
The covers are iroko wood dyed in black ebony and red mahogany. Protected with lacquer rubber varnish made with lacquer worm excretion flakes, dissolved in alcohol. The black dye has been obtained with vitriol (iron sulphate), oak gills (tannin) and Arabic gum (acacia resin). The mahogany dye is made with cochineal (insect) and nogaline (extract of the green walnut shell).