The Mark II Z3-NO was a second-degree droid environmental droid that was roughly shaped like a dome with several appendages. It was equipped with a vast array of tools, including compressors, shovels, grinders, hydrators, pulverizers and vaporators that allowed it to perform various tasks such as pulverizing rocks or dredging swamps. It was used for terraformed a planet's surface. The droid was known to be quick and efficient, but it would kill any creature or plant that was in its path. There existed at least one unit that was covered in orange plating.
The Z3-NO line was created during the last decades of the Galactic Republic. Its initial target market was the wealthy land owners of the galaxy who wanted to avoid the labor of gardening themselves. In the wake of the Invasion of Naboo in 32 BBY, the Gungans launched a colonization effort on the moon Ohma-D'un. In order for that effort to be successful, a landscaping droid was required, and a Z3-NO unit was brought to Ohma-Dun.