I got this as an addon to the "Heavy Boy Truck". It's a little pricey for what you get, but it's necessary to complete the set. It's easy to assemble. doesn't take much time. Not many gears to work with. I feel it is a little weak in a few places and could be better constructed to make this model more solid. Directions are always great with the Ugear line. I would buy this again.
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