The size of canvases and usage of additional structural material.
Explanation:
Pollock began to lay huge canvases on the floor, pouring paint over them, sometimes mixing them with materials such as sand or crushed glass.
In addition to his fist and wrist, he used his whole body to paint, with only one rule: he put out brushes, pallets, and other painting tools and began using sticks, masonry spoons, and kitchen knives.
