Rubber hose animation was the first animation style that became standardized in the American animation industry. The defining feature of the style is "rubber-hose limbs"—arms, and sometimes legs, that are typically drawn as flowing curves, without articulation. This style makes most moving animated objects exhibit a curving motion, resembling the physical properties of a rubber hose. The most famous examples of this style are Oswald the Lucky Rabbit, Mickey Mouse, Popeye, Betty Boop, and Felix the Cat. While the rubber hose art style fell out of fashion by the late 1930s, it has experienced a renewed interest since the early 2010s.