This 87 HO scale radial materials conveyor is the type used to stack and move materials from crushers, screeners or trucks into piles. This particular one is set as an 80' version with the boom folded out, and is roughly 54 feet for transport. The piece will operate with care, the boom folding up or out, and will incline to a 22 degree angle. There is a few duplicate pats such as the retaining rings for the boom cylinders, and extra rods (4 in a row between the 'cage' supports.) that are slighly long and should be cut to suit. Personally, I'd replace all the connection rods, axles etc with actual styrene or brass rod for added strength. A conveyor belt is not indluded, but easily replicated with either very fine black sandpaper strips, vinyl or electrical tape. I have left the back end open with a cover to go over the open space to allow ease of access to add this feature. The piece has passed all the software checks for Frosted Ultra Detail or Extreme Detail materials, and I have created a support cage surrounding all the parts so as to help prevent any damage during shipping or printing. Should you have any questions, contact me via this direct link on shapeways, or via email to modelmechanc@gmail.com .