It is one of the few immobile, but destructible items.
This item came out with Update 9.6. The first few days of the update players could put this item into backpacks, and as a result there are a few in houses scattered throughout Tibia.
In the Update 9.8, the standing shovel could no longer be moved and had thus been transformed into an Object. In a latter patch, it became destructible so players who had taken it to their houses could destroy it.