Trunk pressing takes box pressing to the extreme. Cigars are placed in wooden containers, with a wooden slat between each cigar. Pressure is applied from above, and the cigars are pressed, then later rotated. This pressing and rotation squares off the edges of a cigar to a dramatic degree, giving the cigars a very square shape. The process was popularized in the United States by Padrón Anniversary cigars. The practice is commonly called box pressing, which is technically incorrect.