Rebar in path reinforcement have the same length, but are not all parallel to each other. The rebar is perpendicular to the boundary you specify.
The hooked end of the rebar is near the specified boundary and the bars extend to one side of the path.
The instance properties of the host control the rebar cover settings (the offset distance from the edge/face of the host to the rebar) for each path reinforcement instance. Different rebar types require different coverage.