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This file prints eight of the large stackable type concrete 'precast' blocks often seen at quarries, construction sites, lumber yards, hardware stores to contain dirt or gravel and even on the road or highways. They can also be used as a load, and are are able to be stacked on top of each other. They are 2 1/2 feet wide and tall, (the block part) and five feet long. Should there be any questions or comments, contact me via the designer link or direct via email to firstname.lastname@example.org