Multi-segment round planter
6 separate elements together form a planter with outer diameter 400cm and inner diameter 300cm.
Planter may be the wrong word here as there is no bottom. Planter box is therefore perhaps a more correct name.
The border at the bottom of each element ensures that the paving can be nicely finished up to the beginning of the rounding. This runs diagonally and curved upwards so that the entire arrangement seems to rise out of the ground.