The lower level holds the paint, creating a reservoir for easy access while you work.
The upper level has a textured surface with triangles designed to evenly distribute and spread the paint onto the roller.
As you dip the roller into the paint, it picks up the desired amount from the lower section.
Then, when you roll the roller over the upper, triangular-patterned area, the texture helps to evenly coat the roller with paint, ensuring it’s not overloaded or too dry.