This is a modular set of wood-stake fortress pieces. They are designed to be able to stack and interlink via their forked ends. I've been able to make towers up to 3 layers high without issue. Each square is sized to cover about 2 inches by 2 inches, so that they are equivalent to 10 ft square spaces in a DnD (or similar) game. This does not include the forks, as they must overlap. Some assembly is required, but only for the Initial and Base pieces, which are designed to glue together. Alternatively, you could stick the Default piece straight into foam and avoid needing a base/initial set altogether. Additionally, many of the pieces can be printed without supports as long as you set the right side flat with your build plate. Not pictured is the "HalfLog" file which accounts for logs sticking half-up out of a river. This doesn't interlink with the rest of the set, but is thematically akin to the rest of these pieces, so is included.