PIQUADRO, a global luxury brand from Italy, is driven by its strong dedication to its values for design, functionality, and technology. With a document holder, coin purse, credit card holder, and RFID anti-fraud. The Black Square collection is made with full-grain Tuscan leather, tanned with vegetable tannins. Its non-homogeneous appearance is the result of washing, which retains all the warmth and charm of natural, uncovered skin. After tanning, the leather is placed in large tanks full of water, without the addition of chemicals. The skin is then dried and spread, so that its fibers release. The leather thus acquires those differences in shades of color, grain, and softness, which make each piece of the Black Square collection unique and exclusive.