Conveyor Pole Stackable

The Conveyor Pole Stackable is a ladder-like version of a Conveyor Pole that can be stacked on top of Conveyor Poles and itself, allowing running multiple different belts on top of each other with ease. Conveyor Poles Stackables must be placed separately from the conveyor belt and pole, with each additional stacker adding one extra spot for a belt to be run.

Trivia
Although the icon displays multiple levels and appears to contain a built in coveyor pole, each stacker only has a space for one belt and lacks the pole in the icon.