Black Square accessories are made with full-grain Tuscan leather, tanned with vegetable tannins. Its non-homogeneous appearance is the result of original craftsmanship. After tanning, expert hands place the leather in large tanks full of water, without the addition of chemicals. The leather is then dried in drums and finally stretched, so that its fibers release. The leather thus acquires those differences in color shades, grain and softness, which make each piece of the Black Square collection unique and exclusive.