Idea of Stepper Icon
This looks like a person holding a string, attached to a circle. The circle is sitting on the ground. The Circle has a small line coming from it, which the person is stepping on.
This Stepper icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,200 icons, all in the same style and quality.