Why are some 20-inch suitcases big and some small?

There are slight differences. The reason why some 20-inch suitcases are large and some are small is because there are subtle differences. The suitcase is a type of box that is carried when traveling. The box is larger and can easily hold various clothes and utensils. Suitcases are divided into two structural forms: hardware and software. The shape is often a rectangular parallelepiped design, and the corners are often curved.