The Anilox roller is essential in flexographic printing. It is made of metal (steel or aluminum) and is coated with a ceramic layer engraved with small cells. The cells are of specific sizes and shapes, designed to collect ink in a controlled manner and transfer the right amount of ink to the printing cylinder. The cells can have different sizes and depths, affecting the desired final result. There is a wide variety of types of Anilox rollers, allowing for greater versatility in the printing process.